1//===-- sanitizer_common_interceptors.inc -----------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// Common function interceptors for tools like AddressSanitizer,
10// ThreadSanitizer, MemorySanitizer, etc.
11//
12// This file should be included into the tool's interceptor file,
13// which has to define its own macros:
14// COMMON_INTERCEPTOR_ENTER
15// COMMON_INTERCEPTOR_ENTER_NOIGNORE
16// COMMON_INTERCEPTOR_READ_RANGE
17// COMMON_INTERCEPTOR_WRITE_RANGE
18// COMMON_INTERCEPTOR_INITIALIZE_RANGE
19// COMMON_INTERCEPTOR_DIR_ACQUIRE
20// COMMON_INTERCEPTOR_FD_ACQUIRE
21// COMMON_INTERCEPTOR_FD_RELEASE
22// COMMON_INTERCEPTOR_FD_ACCESS
23// COMMON_INTERCEPTOR_SET_THREAD_NAME
24// COMMON_INTERCEPTOR_ON_DLOPEN
25// COMMON_INTERCEPTOR_ON_EXIT
26// COMMON_INTERCEPTOR_MUTEX_PRE_LOCK
27// COMMON_INTERCEPTOR_MUTEX_POST_LOCK
28// COMMON_INTERCEPTOR_MUTEX_UNLOCK
29// COMMON_INTERCEPTOR_MUTEX_REPAIR
30// COMMON_INTERCEPTOR_SET_PTHREAD_NAME
31// COMMON_INTERCEPTOR_HANDLE_RECVMSG
32// COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED
33// COMMON_INTERCEPTOR_MEMSET_IMPL
34// COMMON_INTERCEPTOR_MEMMOVE_IMPL
35// COMMON_INTERCEPTOR_MEMCPY_IMPL
36// COMMON_INTERCEPTOR_MMAP_IMPL
37// COMMON_INTERCEPTOR_COPY_STRING
38// COMMON_INTERCEPTOR_STRNDUP_IMPL
39// COMMON_INTERCEPTOR_STRERROR
40//===----------------------------------------------------------------------===//
41
42#include "interception/interception.h"
43#include "sanitizer_addrhashmap.h"
44#include "sanitizer_errno.h"
45#include "sanitizer_placement_new.h"
46#include "sanitizer_platform_interceptors.h"
47#include "sanitizer_symbolizer.h"
48#include "sanitizer_tls_get_addr.h"
49
50#include <stdarg.h>
51
52#if SANITIZER_INTERCEPTOR_HOOKS
53#define CALL_WEAK_INTERCEPTOR_HOOK(f, ...) f(__VA_ARGS__);
54#define DECLARE_WEAK_INTERCEPTOR_HOOK(f, ...) \
55 SANITIZER_INTERFACE_WEAK_DEF(void, f, __VA_ARGS__) {}
56#else
57#define DECLARE_WEAK_INTERCEPTOR_HOOK(f, ...)
58#define CALL_WEAK_INTERCEPTOR_HOOK(f, ...)
59
60#endif // SANITIZER_INTERCEPTOR_HOOKS
61
62#if SANITIZER_WINDOWS && !defined(va_copy)
63#define va_copy(dst, src) ((dst) = (src))
64#endif // _WIN32
65
66#if SANITIZER_FREEBSD
67#define pthread_setname_np pthread_set_name_np
68#define inet_aton __inet_aton
69#define inet_pton __inet_pton
70#define iconv __bsd_iconv
71#endif
72
73#if SANITIZER_NETBSD
74#define clock_getres __clock_getres50
75#define clock_gettime __clock_gettime50
76#define clock_settime __clock_settime50
77#define ctime __ctime50
78#define ctime_r __ctime_r50
79#define devname __devname50
80#define fgetpos __fgetpos50
81#define fsetpos __fsetpos50
82#define fstatvfs __fstatvfs90
83#define fstatvfs1 __fstatvfs190
84#define fts_children __fts_children60
85#define fts_close __fts_close60
86#define fts_open __fts_open60
87#define fts_read __fts_read60
88#define fts_set __fts_set60
89#define getitimer __getitimer50
90#define getmntinfo __getmntinfo90
91#define getpwent __getpwent50
92#define getpwnam __getpwnam50
93#define getpwnam_r __getpwnam_r50
94#define getpwuid __getpwuid50
95#define getpwuid_r __getpwuid_r50
96#define getutent __getutent50
97#define getutxent __getutxent50
98#define getutxid __getutxid50
99#define getutxline __getutxline50
100#define getvfsstat __getvfsstat90
101#define pututxline __pututxline50
102#define glob __glob30
103#define gmtime __gmtime50
104#define gmtime_r __gmtime_r50
105#define localtime __locatime50
106#define localtime_r __localtime_r50
107#define mktime __mktime50
108#define lstat __lstat50
109#define opendir __opendir30
110#define readdir __readdir30
111#define readdir_r __readdir_r30
112#define scandir __scandir30
113#define setitimer __setitimer50
114#define setlocale __setlocale50
115#define shmctl __shmctl50
116#define sigaltstack __sigaltstack14
117#define sigemptyset __sigemptyset14
118#define sigfillset __sigfillset14
119#define sigpending __sigpending14
120#define sigprocmask __sigprocmask14
121#define sigtimedwait __sigtimedwait50
122#define stat __stat50
123#define statvfs __statvfs90
124#define statvfs1 __statvfs190
125#define time __time50
126#define times __times13
127#define unvis __unvis50
128#define wait3 __wait350
129#define wait4 __wait450
130extern const unsigned short *_ctype_tab_;
131extern const short *_toupper_tab_;
132extern const short *_tolower_tab_;
133#endif
134
135// Platform-specific options.
136#if SANITIZER_MAC
137#define PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE false
138#elif SANITIZER_WINDOWS64
139#define PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE false
140#else
141#define PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE true
142#endif // SANITIZER_MAC
143
144#ifndef COMMON_INTERCEPTOR_INITIALIZE_RANGE
145#define COMMON_INTERCEPTOR_INITIALIZE_RANGE(p, size) {}
146#endif
147
148#ifndef COMMON_INTERCEPTOR_UNPOISON_PARAM
149#define COMMON_INTERCEPTOR_UNPOISON_PARAM(count) {}
150#endif
151
152#ifndef COMMON_INTERCEPTOR_FD_ACCESS
153#define COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd) {}
154#endif
155
156#ifndef COMMON_INTERCEPTOR_MUTEX_PRE_LOCK
157#define COMMON_INTERCEPTOR_MUTEX_PRE_LOCK(ctx, m) {}
158#endif
159
160#ifndef COMMON_INTERCEPTOR_MUTEX_POST_LOCK
161#define COMMON_INTERCEPTOR_MUTEX_POST_LOCK(ctx, m) {}
162#endif
163
164#ifndef COMMON_INTERCEPTOR_MUTEX_UNLOCK
165#define COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, m) {}
166#endif
167
168#ifndef COMMON_INTERCEPTOR_MUTEX_REPAIR
169#define COMMON_INTERCEPTOR_MUTEX_REPAIR(ctx, m) {}
170#endif
171
172#ifndef COMMON_INTERCEPTOR_MUTEX_INVALID
173#define COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m) {}
174#endif
175
176#ifndef COMMON_INTERCEPTOR_HANDLE_RECVMSG
177#define COMMON_INTERCEPTOR_HANDLE_RECVMSG(ctx, msg) ((void)(msg))
178#endif
179
180#ifndef COMMON_INTERCEPTOR_FILE_OPEN
181#define COMMON_INTERCEPTOR_FILE_OPEN(ctx, file, path) {}
182#endif
183
184#ifndef COMMON_INTERCEPTOR_FILE_CLOSE
185#define COMMON_INTERCEPTOR_FILE_CLOSE(ctx, file) {}
186#endif
187
188#ifndef COMMON_INTERCEPTOR_LIBRARY_LOADED
189#define COMMON_INTERCEPTOR_LIBRARY_LOADED(filename, handle) {}
190#endif
191
192#ifndef COMMON_INTERCEPTOR_LIBRARY_UNLOADED
193#define COMMON_INTERCEPTOR_LIBRARY_UNLOADED() {}
194#endif
195
196#ifndef COMMON_INTERCEPTOR_ENTER_NOIGNORE
197#define COMMON_INTERCEPTOR_ENTER_NOIGNORE(ctx, ...) \
198 COMMON_INTERCEPTOR_ENTER(ctx, __VA_ARGS__)
199#endif
200
201#ifndef COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED
202#define COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED (0)
203#endif
204
205#define COMMON_INTERCEPTOR_READ_STRING(ctx, s, n) \
206 COMMON_INTERCEPTOR_READ_RANGE((ctx), (s), \
207 common_flags()->strict_string_checks ? (REAL(strlen)(s)) + 1 : (n) )
208
209#ifndef COMMON_INTERCEPTOR_ON_DLOPEN
210#define COMMON_INTERCEPTOR_ON_DLOPEN(filename, flag) \
211 CheckNoDeepBind(filename, flag);
212#endif
213
214#ifndef COMMON_INTERCEPTOR_GET_TLS_RANGE
215#define COMMON_INTERCEPTOR_GET_TLS_RANGE(begin, end) *begin = *end = 0;
216#endif
217
218#ifndef COMMON_INTERCEPTOR_ACQUIRE
219#define COMMON_INTERCEPTOR_ACQUIRE(ctx, u) {}
220#endif
221
222#ifndef COMMON_INTERCEPTOR_RELEASE
223#define COMMON_INTERCEPTOR_RELEASE(ctx, u) {}
224#endif
225
226#ifndef COMMON_INTERCEPTOR_USER_CALLBACK_START
227#define COMMON_INTERCEPTOR_USER_CALLBACK_START() {}
228#endif
229
230#ifndef COMMON_INTERCEPTOR_USER_CALLBACK_END
231#define COMMON_INTERCEPTOR_USER_CALLBACK_END() {}
232#endif
233
234#ifdef SANITIZER_NLDBL_VERSION
235#define COMMON_INTERCEPT_FUNCTION_LDBL(fn) \
236 COMMON_INTERCEPT_FUNCTION_VER(fn, SANITIZER_NLDBL_VERSION)
237#else
238#define COMMON_INTERCEPT_FUNCTION_LDBL(fn) \
239 COMMON_INTERCEPT_FUNCTION(fn)
240#endif
241
242#ifndef COMMON_INTERCEPTOR_MEMSET_IMPL
243#define COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, dst, v, size) \
244 { \
245 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) \
246 return internal_memset(dst, v, size); \
247 COMMON_INTERCEPTOR_ENTER(ctx, memset, dst, v, size); \
248 if (common_flags()->intercept_intrin) \
249 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); \
250 return REAL(memset)(dst, v, size); \
251 }
252#endif
253
254#ifndef COMMON_INTERCEPTOR_MEMMOVE_IMPL
255#define COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, dst, src, size) \
256 { \
257 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) \
258 return internal_memmove(dst, src, size); \
259 COMMON_INTERCEPTOR_ENTER(ctx, memmove, dst, src, size); \
260 if (common_flags()->intercept_intrin) { \
261 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); \
262 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, size); \
263 } \
264 return REAL(memmove)(dst, src, size); \
265 }
266#endif
267
268#ifndef COMMON_INTERCEPTOR_MEMCPY_IMPL
269#define COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, dst, src, size) \
270 { \
271 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) { \
272 return internal_memmove(dst, src, size); \
273 } \
274 COMMON_INTERCEPTOR_ENTER(ctx, memcpy, dst, src, size); \
275 if (common_flags()->intercept_intrin) { \
276 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); \
277 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, size); \
278 } \
279 return REAL(memcpy)(dst, src, size); \
280 }
281#endif
282
283#ifndef COMMON_INTERCEPTOR_MMAP_IMPL
284#define COMMON_INTERCEPTOR_MMAP_IMPL(ctx, mmap, addr, sz, prot, flags, fd, \
285 off) \
286 { return REAL(mmap)(addr, sz, prot, flags, fd, off); }
287#endif
288
289#ifndef COMMON_INTERCEPTOR_COPY_STRING
290#define COMMON_INTERCEPTOR_COPY_STRING(ctx, to, from, size) {}
291#endif
292
293#ifndef COMMON_INTERCEPTOR_STRNDUP_IMPL
294#define COMMON_INTERCEPTOR_STRNDUP_IMPL(ctx, s, size) \
295 COMMON_INTERCEPTOR_ENTER(ctx, strndup, s, size); \
296 uptr copy_length = internal_strnlen(s, size); \
297 char *new_mem = (char *)WRAP(malloc)(copy_length + 1); \
298 if (common_flags()->intercept_strndup) { \
299 COMMON_INTERCEPTOR_READ_STRING(ctx, s, Min(size, copy_length + 1)); \
300 } \
301 COMMON_INTERCEPTOR_COPY_STRING(ctx, new_mem, s, copy_length); \
302 internal_memcpy(new_mem, s, copy_length); \
303 new_mem[copy_length] = '\0'; \
304 return new_mem;
305#endif
306
307#ifndef COMMON_INTERCEPTOR_STRERROR
308#define COMMON_INTERCEPTOR_STRERROR() {}
309#endif
310
311struct FileMetadata {
312 // For open_memstream().
313 char **addr;
314 SIZE_T *size;
315};
316
317struct CommonInterceptorMetadata {
318 enum {
319 CIMT_INVALID = 0,
320 CIMT_FILE
321 } type;
322 union {
323 FileMetadata file;
324 };
325};
326
327#if SI_POSIX
328typedef AddrHashMap<CommonInterceptorMetadata, 31051> MetadataHashMap;
329
330static MetadataHashMap *interceptor_metadata_map;
331
332UNUSED static void SetInterceptorMetadata(__sanitizer_FILE *addr,
333 const FileMetadata &file) {
334 MetadataHashMap::Handle h(interceptor_metadata_map, (uptr)addr);
335 CHECK(h.created());
336 h->type = CommonInterceptorMetadata::CIMT_FILE;
337 h->file = file;
338}
339
340UNUSED static const FileMetadata *GetInterceptorMetadata(
341 __sanitizer_FILE *addr) {
342 MetadataHashMap::Handle h(interceptor_metadata_map, (uptr)addr,
343 /* remove */ false,
344 /* create */ false);
345 if (addr && h.exists()) {
346 CHECK(!h.created());
347 CHECK(h->type == CommonInterceptorMetadata::CIMT_FILE);
348 return &h->file;
349 } else {
350 return 0;
351 }
352}
353
354UNUSED static void DeleteInterceptorMetadata(void *addr) {
355 MetadataHashMap::Handle h(interceptor_metadata_map, (uptr)addr, true);
356 CHECK(h.exists());
357}
358#endif // SI_POSIX
359
360#if SANITIZER_INTERCEPT_STRLEN
361INTERCEPTOR(SIZE_T, strlen, const char *s) {
362 // Sometimes strlen is called prior to InitializeCommonInterceptors,
363 // in which case the REAL(strlen) typically used in
364 // COMMON_INTERCEPTOR_ENTER will fail. We use internal_strlen here
365 // to handle that.
366 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
367 return internal_strlen(s);
368 void *ctx;
369 COMMON_INTERCEPTOR_ENTER(ctx, strlen, s);
370 SIZE_T result = REAL(strlen)(s);
371 if (common_flags()->intercept_strlen)
372 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, result + 1);
373 return result;
374}
375#define INIT_STRLEN COMMON_INTERCEPT_FUNCTION(strlen)
376#else
377#define INIT_STRLEN
378#endif
379
380#if SANITIZER_INTERCEPT_STRNLEN
381INTERCEPTOR(SIZE_T, strnlen, const char *s, SIZE_T maxlen) {
382 void *ctx;
383 COMMON_INTERCEPTOR_ENTER(ctx, strnlen, s, maxlen);
384 SIZE_T length = REAL(strnlen)(s, maxlen);
385 if (common_flags()->intercept_strlen)
386 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, Min(length + 1, maxlen));
387 return length;
388}
389#define INIT_STRNLEN COMMON_INTERCEPT_FUNCTION(strnlen)
390#else
391#define INIT_STRNLEN
392#endif
393
394#if SANITIZER_INTERCEPT_STRNDUP
395INTERCEPTOR(char*, strndup, const char *s, uptr size) {
396 void *ctx;
397 COMMON_INTERCEPTOR_STRNDUP_IMPL(ctx, s, size);
398}
399#define INIT_STRNDUP COMMON_INTERCEPT_FUNCTION(strndup)
400#else
401#define INIT_STRNDUP
402#endif // SANITIZER_INTERCEPT_STRNDUP
403
404#if SANITIZER_INTERCEPT___STRNDUP
405INTERCEPTOR(char*, __strndup, const char *s, uptr size) {
406 void *ctx;
407 COMMON_INTERCEPTOR_STRNDUP_IMPL(ctx, s, size);
408}
409#define INIT___STRNDUP COMMON_INTERCEPT_FUNCTION(__strndup)
410#else
411#define INIT___STRNDUP
412#endif // SANITIZER_INTERCEPT___STRNDUP
413
414#if SANITIZER_INTERCEPT_TEXTDOMAIN
415INTERCEPTOR(char*, textdomain, const char *domainname) {
416 void *ctx;
417 COMMON_INTERCEPTOR_ENTER(ctx, textdomain, domainname);
418 if (domainname) COMMON_INTERCEPTOR_READ_STRING(ctx, domainname, 0);
419 char *domain = REAL(textdomain)(domainname);
420 if (domain) {
421 COMMON_INTERCEPTOR_INITIALIZE_RANGE(domain, REAL(strlen)(domain) + 1);
422 }
423 return domain;
424}
425#define INIT_TEXTDOMAIN COMMON_INTERCEPT_FUNCTION(textdomain)
426#else
427#define INIT_TEXTDOMAIN
428#endif
429
430#if SANITIZER_INTERCEPT_STRCMP
431static inline int CharCmpX(unsigned char c1, unsigned char c2) {
432 return (c1 == c2) ? 0 : (c1 < c2) ? -1 : 1;
433}
434
435DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcmp, uptr called_pc,
436 const char *s1, const char *s2, int result)
437
438INTERCEPTOR(int, strcmp, const char *s1, const char *s2) {
439 void *ctx;
440 COMMON_INTERCEPTOR_ENTER(ctx, strcmp, s1, s2);
441 unsigned char c1, c2;
442 uptr i;
443 for (i = 0;; i++) {
444 c1 = (unsigned char)s1[i];
445 c2 = (unsigned char)s2[i];
446 if (c1 != c2 || c1 == '\0') break;
447 }
448 if (common_flags()->intercept_strcmp) {
449 COMMON_INTERCEPTOR_READ_STRING(ctx, s1, i + 1);
450 COMMON_INTERCEPTOR_READ_STRING(ctx, s2, i + 1);
451 }
452 int result = CharCmpX(c1, c2);
453 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcmp, GET_CALLER_PC(), s1,
454 s2, result);
455 return result;
456}
457
458DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncmp, uptr called_pc,
459 const char *s1, const char *s2, uptr n,
460 int result)
461
462INTERCEPTOR(int, strncmp, const char *s1, const char *s2, uptr size) {
463 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
464 return internal_strncmp(s1, s2, size);
465 void *ctx;
466 COMMON_INTERCEPTOR_ENTER(ctx, strncmp, s1, s2, size);
467 unsigned char c1 = 0, c2 = 0;
468 uptr i;
469 for (i = 0; i < size; i++) {
470 c1 = (unsigned char)s1[i];
471 c2 = (unsigned char)s2[i];
472 if (c1 != c2 || c1 == '\0') break;
473 }
474 uptr i1 = i;
475 uptr i2 = i;
476 if (common_flags()->strict_string_checks) {
477 for (; i1 < size && s1[i1]; i1++) {}
478 for (; i2 < size && s2[i2]; i2++) {}
479 }
480 COMMON_INTERCEPTOR_READ_RANGE((ctx), (s1), Min(i1 + 1, size));
481 COMMON_INTERCEPTOR_READ_RANGE((ctx), (s2), Min(i2 + 1, size));
482 int result = CharCmpX(c1, c2);
483 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncmp, GET_CALLER_PC(), s1,
484 s2, size, result);
485 return result;
486}
487
488#define INIT_STRCMP COMMON_INTERCEPT_FUNCTION(strcmp)
489#define INIT_STRNCMP COMMON_INTERCEPT_FUNCTION(strncmp)
490#else
491#define INIT_STRCMP
492#define INIT_STRNCMP
493#endif
494
495#if SANITIZER_INTERCEPT_STRCASECMP
496static inline int CharCaseCmp(unsigned char c1, unsigned char c2) {
497 int c1_low = ToLower(c1);
498 int c2_low = ToLower(c2);
499 return c1_low - c2_low;
500}
501
502DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasecmp, uptr called_pc,
503 const char *s1, const char *s2, int result)
504
505INTERCEPTOR(int, strcasecmp, const char *s1, const char *s2) {
506 void *ctx;
507 COMMON_INTERCEPTOR_ENTER(ctx, strcasecmp, s1, s2);
508 unsigned char c1 = 0, c2 = 0;
509 uptr i;
510 for (i = 0;; i++) {
511 c1 = (unsigned char)s1[i];
512 c2 = (unsigned char)s2[i];
513 if (CharCaseCmp(c1, c2) != 0 || c1 == '\0') break;
514 }
515 COMMON_INTERCEPTOR_READ_STRING(ctx, s1, i + 1);
516 COMMON_INTERCEPTOR_READ_STRING(ctx, s2, i + 1);
517 int result = CharCaseCmp(c1, c2);
518 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasecmp, GET_CALLER_PC(),
519 s1, s2, result);
520 return result;
521}
522
523DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncasecmp, uptr called_pc,
524 const char *s1, const char *s2, uptr size,
525 int result)
526
527INTERCEPTOR(int, strncasecmp, const char *s1, const char *s2, SIZE_T size) {
528 void *ctx;
529 COMMON_INTERCEPTOR_ENTER(ctx, strncasecmp, s1, s2, size);
530 unsigned char c1 = 0, c2 = 0;
531 uptr i;
532 for (i = 0; i < size; i++) {
533 c1 = (unsigned char)s1[i];
534 c2 = (unsigned char)s2[i];
535 if (CharCaseCmp(c1, c2) != 0 || c1 == '\0') break;
536 }
537 uptr i1 = i;
538 uptr i2 = i;
539 if (common_flags()->strict_string_checks) {
540 for (; i1 < size && s1[i1]; i1++) {}
541 for (; i2 < size && s2[i2]; i2++) {}
542 }
543 COMMON_INTERCEPTOR_READ_RANGE((ctx), (s1), Min(i1 + 1, size));
544 COMMON_INTERCEPTOR_READ_RANGE((ctx), (s2), Min(i2 + 1, size));
545 int result = CharCaseCmp(c1, c2);
546 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncasecmp, GET_CALLER_PC(),
547 s1, s2, size, result);
548 return result;
549}
550
551#define INIT_STRCASECMP COMMON_INTERCEPT_FUNCTION(strcasecmp)
552#define INIT_STRNCASECMP COMMON_INTERCEPT_FUNCTION(strncasecmp)
553#else
554#define INIT_STRCASECMP
555#define INIT_STRNCASECMP
556#endif
557
558#if SANITIZER_INTERCEPT_STRSTR || SANITIZER_INTERCEPT_STRCASESTR
559static inline void StrstrCheck(void *ctx, char *r, const char *s1,
560 const char *s2) {
561 uptr len1 = REAL(strlen)(s1);
562 uptr len2 = REAL(strlen)(s2);
563 COMMON_INTERCEPTOR_READ_STRING(ctx, s1, r ? r - s1 + len2 : len1 + 1);
564 COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, len2 + 1);
565}
566#endif
567
568#if SANITIZER_INTERCEPT_STRSTR
569
570DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strstr, uptr called_pc,
571 const char *s1, const char *s2, char *result)
572
573INTERCEPTOR(char*, strstr, const char *s1, const char *s2) {
574 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
575 return internal_strstr(s1, s2);
576 void *ctx;
577 COMMON_INTERCEPTOR_ENTER(ctx, strstr, s1, s2);
578 char *r = REAL(strstr)(s1, s2);
579 if (common_flags()->intercept_strstr)
580 StrstrCheck(ctx, r, s1, s2);
581 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strstr, GET_CALLER_PC(), s1,
582 s2, r);
583 return r;
584}
585
586#define INIT_STRSTR COMMON_INTERCEPT_FUNCTION(strstr);
587#else
588#define INIT_STRSTR
589#endif
590
591#if SANITIZER_INTERCEPT_STRCASESTR
592
593DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasestr, uptr called_pc,
594 const char *s1, const char *s2, char *result)
595
596INTERCEPTOR(char*, strcasestr, const char *s1, const char *s2) {
597 void *ctx;
598 COMMON_INTERCEPTOR_ENTER(ctx, strcasestr, s1, s2);
599 char *r = REAL(strcasestr)(s1, s2);
600 if (common_flags()->intercept_strstr)
601 StrstrCheck(ctx, r, s1, s2);
602 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasestr, GET_CALLER_PC(),
603 s1, s2, r);
604 return r;
605}
606
607#define INIT_STRCASESTR COMMON_INTERCEPT_FUNCTION(strcasestr);
608#else
609#define INIT_STRCASESTR
610#endif
611
612#if SANITIZER_INTERCEPT_STRTOK
613
614INTERCEPTOR(char*, strtok, char *str, const char *delimiters) {
615 void *ctx;
616 COMMON_INTERCEPTOR_ENTER(ctx, strtok, str, delimiters);
617 if (!common_flags()->intercept_strtok) {
618 return REAL(strtok)(str, delimiters);
619 }
620 if (common_flags()->strict_string_checks) {
621 // If strict_string_checks is enabled, we check the whole first argument
622 // string on the first call (strtok saves this string in a static buffer
623 // for subsequent calls). We do not need to check strtok's result.
624 // As the delimiters can change, we check them every call.
625 if (str != nullptr) {
626 COMMON_INTERCEPTOR_READ_RANGE(ctx, str, REAL(strlen)(str) + 1);
627 }
628 COMMON_INTERCEPTOR_READ_RANGE(ctx, delimiters,
629 REAL(strlen)(delimiters) + 1);
630 return REAL(strtok)(str, delimiters);
631 } else {
632 // However, when strict_string_checks is disabled we cannot check the
633 // whole string on the first call. Instead, we check the result string
634 // which is guaranteed to be a NULL-terminated substring of the first
635 // argument. We also conservatively check one character of str and the
636 // delimiters.
637 if (str != nullptr) {
638 COMMON_INTERCEPTOR_READ_STRING(ctx, str, 1);
639 }
640 COMMON_INTERCEPTOR_READ_RANGE(ctx, delimiters, 1);
641 char *result = REAL(strtok)(str, delimiters);
642 if (result != nullptr) {
643 COMMON_INTERCEPTOR_READ_RANGE(ctx, result, REAL(strlen)(result) + 1);
644 } else if (str != nullptr) {
645 // No delimiter were found, it's safe to assume that the entire str was
646 // scanned.
647 COMMON_INTERCEPTOR_READ_RANGE(ctx, str, REAL(strlen)(str) + 1);
648 }
649 return result;
650 }
651}
652
653#define INIT_STRTOK COMMON_INTERCEPT_FUNCTION(strtok)
654#else
655#define INIT_STRTOK
656#endif
657
658#if SANITIZER_INTERCEPT_MEMMEM
659DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memmem, uptr called_pc,
660 const void *s1, SIZE_T len1, const void *s2,
661 SIZE_T len2, void *result)
662
663INTERCEPTOR(void*, memmem, const void *s1, SIZE_T len1, const void *s2,
664 SIZE_T len2) {
665 void *ctx;
666 COMMON_INTERCEPTOR_ENTER(ctx, memmem, s1, len1, s2, len2);
667 void *r = REAL(memmem)(s1, len1, s2, len2);
668 if (common_flags()->intercept_memmem) {
669 COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, len1);
670 COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, len2);
671 }
672 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memmem, GET_CALLER_PC(),
673 s1, len1, s2, len2, r);
674 return r;
675}
676
677#define INIT_MEMMEM COMMON_INTERCEPT_FUNCTION(memmem);
678#else
679#define INIT_MEMMEM
680#endif // SANITIZER_INTERCEPT_MEMMEM
681
682#if SANITIZER_INTERCEPT_STRCHR
683INTERCEPTOR(char*, strchr, const char *s, int c) {
684 void *ctx;
685 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
686 return internal_strchr(s, c);
687 COMMON_INTERCEPTOR_ENTER(ctx, strchr, s, c);
688 char *result = REAL(strchr)(s, c);
689 if (common_flags()->intercept_strchr) {
690 // Keep strlen as macro argument, as macro may ignore it.
691 COMMON_INTERCEPTOR_READ_STRING(ctx, s,
692 (result ? result - s : REAL(strlen)(s)) + 1);
693 }
694 return result;
695}
696#define INIT_STRCHR COMMON_INTERCEPT_FUNCTION(strchr)
697#else
698#define INIT_STRCHR
699#endif
700
701#if SANITIZER_INTERCEPT_STRCHRNUL
702INTERCEPTOR(char*, strchrnul, const char *s, int c) {
703 void *ctx;
704 COMMON_INTERCEPTOR_ENTER(ctx, strchrnul, s, c);
705 char *result = REAL(strchrnul)(s, c);
706 uptr len = result - s + 1;
707 if (common_flags()->intercept_strchr)
708 COMMON_INTERCEPTOR_READ_STRING(ctx, s, len);
709 return result;
710}
711#define INIT_STRCHRNUL COMMON_INTERCEPT_FUNCTION(strchrnul)
712#else
713#define INIT_STRCHRNUL
714#endif
715
716#if SANITIZER_INTERCEPT_STRRCHR
717INTERCEPTOR(char*, strrchr, const char *s, int c) {
718 void *ctx;
719 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
720 return internal_strrchr(s, c);
721 COMMON_INTERCEPTOR_ENTER(ctx, strrchr, s, c);
722 if (common_flags()->intercept_strchr)
723 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, REAL(strlen)(s) + 1);
724 return REAL(strrchr)(s, c);
725}
726#define INIT_STRRCHR COMMON_INTERCEPT_FUNCTION(strrchr)
727#else
728#define INIT_STRRCHR
729#endif
730
731#if SANITIZER_INTERCEPT_STRSPN
732INTERCEPTOR(SIZE_T, strspn, const char *s1, const char *s2) {
733 void *ctx;
734 COMMON_INTERCEPTOR_ENTER(ctx, strspn, s1, s2);
735 SIZE_T r = REAL(strspn)(s1, s2);
736 if (common_flags()->intercept_strspn) {
737 COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, REAL(strlen)(s2) + 1);
738 COMMON_INTERCEPTOR_READ_STRING(ctx, s1, r + 1);
739 }
740 return r;
741}
742
743INTERCEPTOR(SIZE_T, strcspn, const char *s1, const char *s2) {
744 void *ctx;
745 COMMON_INTERCEPTOR_ENTER(ctx, strcspn, s1, s2);
746 SIZE_T r = REAL(strcspn)(s1, s2);
747 if (common_flags()->intercept_strspn) {
748 COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, REAL(strlen)(s2) + 1);
749 COMMON_INTERCEPTOR_READ_STRING(ctx, s1, r + 1);
750 }
751 return r;
752}
753
754#define INIT_STRSPN \
755 COMMON_INTERCEPT_FUNCTION(strspn); \
756 COMMON_INTERCEPT_FUNCTION(strcspn);
757#else
758#define INIT_STRSPN
759#endif
760
761#if SANITIZER_INTERCEPT_STRPBRK
762INTERCEPTOR(char *, strpbrk, const char *s1, const char *s2) {
763 void *ctx;
764 COMMON_INTERCEPTOR_ENTER(ctx, strpbrk, s1, s2);
765 char *r = REAL(strpbrk)(s1, s2);
766 if (common_flags()->intercept_strpbrk) {
767 COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, REAL(strlen)(s2) + 1);
768 COMMON_INTERCEPTOR_READ_STRING(ctx, s1,
769 r ? r - s1 + 1 : REAL(strlen)(s1) + 1);
770 }
771 return r;
772}
773
774#define INIT_STRPBRK COMMON_INTERCEPT_FUNCTION(strpbrk);
775#else
776#define INIT_STRPBRK
777#endif
778
779#if SANITIZER_INTERCEPT_MEMSET
780INTERCEPTOR(void *, memset, void *dst, int v, uptr size) {
781 void *ctx;
782 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, dst, v, size);
783}
784
785#define INIT_MEMSET COMMON_INTERCEPT_FUNCTION(memset)
786#else
787#define INIT_MEMSET
788#endif
789
790#if SANITIZER_INTERCEPT_MEMMOVE
791INTERCEPTOR(void *, memmove, void *dst, const void *src, uptr size) {
792 void *ctx;
793 COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, dst, src, size);
794}
795
796#define INIT_MEMMOVE COMMON_INTERCEPT_FUNCTION(memmove)
797#else
798#define INIT_MEMMOVE
799#endif
800
801#if SANITIZER_INTERCEPT_MEMCPY
802INTERCEPTOR(void *, memcpy, void *dst, const void *src, uptr size) {
803 // On OS X, calling internal_memcpy here will cause memory corruptions,
804 // because memcpy and memmove are actually aliases of the same
805 // implementation. We need to use internal_memmove here.
806 // N.B.: If we switch this to internal_ we'll have to use internal_memmove
807 // due to memcpy being an alias of memmove on OS X.
808 void *ctx;
809 if (PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE) {
810 COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, dst, src, size);
811 } else {
812 COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, dst, src, size);
813 }
814}
815
816#define INIT_MEMCPY \
817 do { \
818 if (PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE) { \
819 COMMON_INTERCEPT_FUNCTION(memcpy); \
820 } else { \
821 ASSIGN_REAL(memcpy, memmove); \
822 } \
823 CHECK(REAL(memcpy)); \
824 } while (false)
825
826#else
827#define INIT_MEMCPY
828#endif
829
830#if SANITIZER_INTERCEPT_MEMCMP
831DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memcmp, uptr called_pc,
832 const void *s1, const void *s2, uptr n,
833 int result)
834
835// Common code for `memcmp` and `bcmp`.
836int MemcmpInterceptorCommon(void *ctx,
837 int (*real_fn)(const void *, const void *, uptr),
838 const void *a1, const void *a2, uptr size) {
839 if (common_flags()->intercept_memcmp) {
840 if (common_flags()->strict_memcmp) {
841 // Check the entire regions even if the first bytes of the buffers are
842 // different.
843 COMMON_INTERCEPTOR_READ_RANGE(ctx, a1, size);
844 COMMON_INTERCEPTOR_READ_RANGE(ctx, a2, size);
845 // Fallthrough to REAL(memcmp) below.
846 } else {
847 unsigned char c1 = 0, c2 = 0;
848 const unsigned char *s1 = (const unsigned char*)a1;
849 const unsigned char *s2 = (const unsigned char*)a2;
850 uptr i;
851 for (i = 0; i < size; i++) {
852 c1 = s1[i];
853 c2 = s2[i];
854 if (c1 != c2) break;
855 }
856 COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, Min(i + 1, size));
857 COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, Min(i + 1, size));
858 int r = CharCmpX(c1, c2);
859 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memcmp, GET_CALLER_PC(),
860 a1, a2, size, r);
861 return r;
862 }
863 }
864 int result = real_fn(a1, a2, size);
865 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memcmp, GET_CALLER_PC(), a1,
866 a2, size, result);
867 return result;
868}
869
870INTERCEPTOR(int, memcmp, const void *a1, const void *a2, uptr size) {
871 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
872 return internal_memcmp(a1, a2, size);
873 void *ctx;
874 COMMON_INTERCEPTOR_ENTER(ctx, memcmp, a1, a2, size);
875 return MemcmpInterceptorCommon(ctx, REAL(memcmp), a1, a2, size);
876}
877
878#define INIT_MEMCMP COMMON_INTERCEPT_FUNCTION(memcmp)
879#else
880#define INIT_MEMCMP
881#endif
882
883#if SANITIZER_INTERCEPT_BCMP
884INTERCEPTOR(int, bcmp, const void *a1, const void *a2, uptr size) {
885 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
886 return internal_memcmp(a1, a2, size);
887 void *ctx;
888 COMMON_INTERCEPTOR_ENTER(ctx, bcmp, a1, a2, size);
889 return MemcmpInterceptorCommon(ctx, REAL(bcmp), a1, a2, size);
890}
891
892#define INIT_BCMP COMMON_INTERCEPT_FUNCTION(bcmp)
893#else
894#define INIT_BCMP
895#endif
896
897#if SANITIZER_INTERCEPT_MEMCHR
898INTERCEPTOR(void*, memchr, const void *s, int c, SIZE_T n) {
899 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
900 return internal_memchr(s, c, n);
901 void *ctx;
902 COMMON_INTERCEPTOR_ENTER(ctx, memchr, s, c, n);
903#if SANITIZER_WINDOWS
904 void *res;
905 if (REAL(memchr)) {
906 res = REAL(memchr)(s, c, n);
907 } else {
908 res = internal_memchr(s, c, n);
909 }
910#else
911 void *res = REAL(memchr)(s, c, n);
912#endif
913 uptr len = res ? (char *)res - (const char *)s + 1 : n;
914 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, len);
915 return res;
916}
917
918#define INIT_MEMCHR COMMON_INTERCEPT_FUNCTION(memchr)
919#else
920#define INIT_MEMCHR
921#endif
922
923#if SANITIZER_INTERCEPT_MEMRCHR
924INTERCEPTOR(void*, memrchr, const void *s, int c, SIZE_T n) {
925 void *ctx;
926 COMMON_INTERCEPTOR_ENTER(ctx, memrchr, s, c, n);
927 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, n);
928 return REAL(memrchr)(s, c, n);
929}
930
931#define INIT_MEMRCHR COMMON_INTERCEPT_FUNCTION(memrchr)
932#else
933#define INIT_MEMRCHR
934#endif
935
936#if SANITIZER_INTERCEPT_FREXP
937INTERCEPTOR(double, frexp, double x, int *exp) {
938 void *ctx;
939 COMMON_INTERCEPTOR_ENTER(ctx, frexp, x, exp);
940 // Assuming frexp() always writes to |exp|.
941 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp));
942 double res = REAL(frexp)(x, exp);
943 return res;
944}
945
946#define INIT_FREXP COMMON_INTERCEPT_FUNCTION(frexp);
947#else
948#define INIT_FREXP
949#endif // SANITIZER_INTERCEPT_FREXP
950
951#if SANITIZER_INTERCEPT_FREXPF_FREXPL
952INTERCEPTOR(float, frexpf, float x, int *exp) {
953 void *ctx;
954 COMMON_INTERCEPTOR_ENTER(ctx, frexpf, x, exp);
955 // FIXME: under ASan the call below may write to freed memory and corrupt
956 // its metadata. See
957 // https://github.com/google/sanitizers/issues/321.
958 float res = REAL(frexpf)(x, exp);
959 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp));
960 return res;
961}
962
963INTERCEPTOR(long double, frexpl, long double x, int *exp) {
964 void *ctx;
965 COMMON_INTERCEPTOR_ENTER(ctx, frexpl, x, exp);
966 // FIXME: under ASan the call below may write to freed memory and corrupt
967 // its metadata. See
968 // https://github.com/google/sanitizers/issues/321.
969 long double res = REAL(frexpl)(x, exp);
970 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp));
971 return res;
972}
973
974#define INIT_FREXPF_FREXPL \
975 COMMON_INTERCEPT_FUNCTION(frexpf); \
976 COMMON_INTERCEPT_FUNCTION_LDBL(frexpl)
977#else
978#define INIT_FREXPF_FREXPL
979#endif // SANITIZER_INTERCEPT_FREXPF_FREXPL
980
981#if SI_POSIX
982static void write_iovec(void *ctx, struct __sanitizer_iovec *iovec,
983 SIZE_T iovlen, SIZE_T maxlen) {
984 for (SIZE_T i = 0; i < iovlen && maxlen; ++i) {
985 SSIZE_T sz = Min(iovec[i].iov_len, maxlen);
986 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iovec[i].iov_base, sz);
987 maxlen -= sz;
988 }
989}
990
991static void read_iovec(void *ctx, struct __sanitizer_iovec *iovec,
992 SIZE_T iovlen, SIZE_T maxlen) {
993 COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec, sizeof(*iovec) * iovlen);
994 for (SIZE_T i = 0; i < iovlen && maxlen; ++i) {
995 SSIZE_T sz = Min(iovec[i].iov_len, maxlen);
996 COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec[i].iov_base, sz);
997 maxlen -= sz;
998 }
999}
1000#endif
1001
1002#if SANITIZER_INTERCEPT_READ
1003INTERCEPTOR(SSIZE_T, read, int fd, void *ptr, SIZE_T count) {
1004 void *ctx;
1005 COMMON_INTERCEPTOR_ENTER(ctx, read, fd, ptr, count);
1006 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
1007 // FIXME: under ASan the call below may write to freed memory and corrupt
1008 // its metadata. See
1009 // https://github.com/google/sanitizers/issues/321.
1010 SSIZE_T res = REAL(read)(fd, ptr, count);
1011 if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res);
1012 if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
1013 return res;
1014}
1015#define INIT_READ COMMON_INTERCEPT_FUNCTION(read)
1016#else
1017#define INIT_READ
1018#endif
1019
1020#if SANITIZER_INTERCEPT_FREAD
1021INTERCEPTOR(SIZE_T, fread, void *ptr, SIZE_T size, SIZE_T nmemb, void *file) {
1022 // libc file streams can call user-supplied functions, see fopencookie.
1023 void *ctx;
1024 COMMON_INTERCEPTOR_ENTER(ctx, fread, ptr, size, nmemb, file);
1025 // FIXME: under ASan the call below may write to freed memory and corrupt
1026 // its metadata. See
1027 // https://github.com/google/sanitizers/issues/321.
1028 SIZE_T res = REAL(fread)(ptr, size, nmemb, file);
1029 if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res * size);
1030 return res;
1031}
1032#define INIT_FREAD COMMON_INTERCEPT_FUNCTION(fread)
1033#else
1034#define INIT_FREAD
1035#endif
1036
1037#if SANITIZER_INTERCEPT_PREAD
1038INTERCEPTOR(SSIZE_T, pread, int fd, void *ptr, SIZE_T count, OFF_T offset) {
1039 void *ctx;
1040 COMMON_INTERCEPTOR_ENTER(ctx, pread, fd, ptr, count, offset);
1041 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
1042 // FIXME: under ASan the call below may write to freed memory and corrupt
1043 // its metadata. See
1044 // https://github.com/google/sanitizers/issues/321.
1045 SSIZE_T res = REAL(pread)(fd, ptr, count, offset);
1046 if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res);
1047 if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
1048 return res;
1049}
1050#define INIT_PREAD COMMON_INTERCEPT_FUNCTION(pread)
1051#else
1052#define INIT_PREAD
1053#endif
1054
1055#if SANITIZER_INTERCEPT_PREAD64
1056INTERCEPTOR(SSIZE_T, pread64, int fd, void *ptr, SIZE_T count, OFF64_T offset) {
1057 void *ctx;
1058 COMMON_INTERCEPTOR_ENTER(ctx, pread64, fd, ptr, count, offset);
1059 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
1060 // FIXME: under ASan the call below may write to freed memory and corrupt
1061 // its metadata. See
1062 // https://github.com/google/sanitizers/issues/321.
1063 SSIZE_T res = REAL(pread64)(fd, ptr, count, offset);
1064 if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res);
1065 if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
1066 return res;
1067}
1068#define INIT_PREAD64 COMMON_INTERCEPT_FUNCTION(pread64)
1069#else
1070#define INIT_PREAD64
1071#endif
1072
1073#if SANITIZER_INTERCEPT_READV
1074INTERCEPTOR_WITH_SUFFIX(SSIZE_T, readv, int fd, __sanitizer_iovec *iov,
1075 int iovcnt) {
1076 void *ctx;
1077 COMMON_INTERCEPTOR_ENTER(ctx, readv, fd, iov, iovcnt);
1078 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
1079 SSIZE_T res = REAL(readv)(fd, iov, iovcnt);
1080 if (res > 0) write_iovec(ctx, iov, iovcnt, res);
1081 if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
1082 return res;
1083}
1084#define INIT_READV COMMON_INTERCEPT_FUNCTION(readv)
1085#else
1086#define INIT_READV
1087#endif
1088
1089#if SANITIZER_INTERCEPT_PREADV
1090INTERCEPTOR(SSIZE_T, preadv, int fd, __sanitizer_iovec *iov, int iovcnt,
1091 OFF_T offset) {
1092 void *ctx;
1093 COMMON_INTERCEPTOR_ENTER(ctx, preadv, fd, iov, iovcnt, offset);
1094 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
1095 SSIZE_T res = REAL(preadv)(fd, iov, iovcnt, offset);
1096 if (res > 0) write_iovec(ctx, iov, iovcnt, res);
1097 if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
1098 return res;
1099}
1100#define INIT_PREADV COMMON_INTERCEPT_FUNCTION(preadv)
1101#else
1102#define INIT_PREADV
1103#endif
1104
1105#if SANITIZER_INTERCEPT_PREADV64
1106INTERCEPTOR(SSIZE_T, preadv64, int fd, __sanitizer_iovec *iov, int iovcnt,
1107 OFF64_T offset) {
1108 void *ctx;
1109 COMMON_INTERCEPTOR_ENTER(ctx, preadv64, fd, iov, iovcnt, offset);
1110 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
1111 SSIZE_T res = REAL(preadv64)(fd, iov, iovcnt, offset);
1112 if (res > 0) write_iovec(ctx, iov, iovcnt, res);
1113 if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
1114 return res;
1115}
1116#define INIT_PREADV64 COMMON_INTERCEPT_FUNCTION(preadv64)
1117#else
1118#define INIT_PREADV64
1119#endif
1120
1121#if SANITIZER_INTERCEPT_WRITE
1122INTERCEPTOR(SSIZE_T, write, int fd, void *ptr, SIZE_T count) {
1123 void *ctx;
1124 COMMON_INTERCEPTOR_ENTER(ctx, write, fd, ptr, count);
1125 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
1126 if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
1127 SSIZE_T res = REAL(write)(fd, ptr, count);
1128 // FIXME: this check should be _before_ the call to REAL(write), not after
1129 if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res);
1130 return res;
1131}
1132#define INIT_WRITE COMMON_INTERCEPT_FUNCTION(write)
1133#else
1134#define INIT_WRITE
1135#endif
1136
1137#if SANITIZER_INTERCEPT_FWRITE
1138INTERCEPTOR(SIZE_T, fwrite, const void *p, uptr size, uptr nmemb, void *file) {
1139 // libc file streams can call user-supplied functions, see fopencookie.
1140 void *ctx;
1141 COMMON_INTERCEPTOR_ENTER(ctx, fwrite, p, size, nmemb, file);
1142 SIZE_T res = REAL(fwrite)(p, size, nmemb, file);
1143 if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, p, res * size);
1144 return res;
1145}
1146#define INIT_FWRITE COMMON_INTERCEPT_FUNCTION(fwrite)
1147#else
1148#define INIT_FWRITE
1149#endif
1150
1151#if SANITIZER_INTERCEPT_PWRITE
1152INTERCEPTOR(SSIZE_T, pwrite, int fd, void *ptr, SIZE_T count, OFF_T offset) {
1153 void *ctx;
1154 COMMON_INTERCEPTOR_ENTER(ctx, pwrite, fd, ptr, count, offset);
1155 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
1156 if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
1157 SSIZE_T res = REAL(pwrite)(fd, ptr, count, offset);
1158 if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res);
1159 return res;
1160}
1161#define INIT_PWRITE COMMON_INTERCEPT_FUNCTION(pwrite)
1162#else
1163#define INIT_PWRITE
1164#endif
1165
1166#if SANITIZER_INTERCEPT_PWRITE64
1167INTERCEPTOR(SSIZE_T, pwrite64, int fd, void *ptr, OFF64_T count,
1168 OFF64_T offset) {
1169 void *ctx;
1170 COMMON_INTERCEPTOR_ENTER(ctx, pwrite64, fd, ptr, count, offset);
1171 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
1172 if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
1173 SSIZE_T res = REAL(pwrite64)(fd, ptr, count, offset);
1174 if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res);
1175 return res;
1176}
1177#define INIT_PWRITE64 COMMON_INTERCEPT_FUNCTION(pwrite64)
1178#else
1179#define INIT_PWRITE64
1180#endif
1181
1182#if SANITIZER_INTERCEPT_WRITEV
1183INTERCEPTOR_WITH_SUFFIX(SSIZE_T, writev, int fd, __sanitizer_iovec *iov,
1184 int iovcnt) {
1185 void *ctx;
1186 COMMON_INTERCEPTOR_ENTER(ctx, writev, fd, iov, iovcnt);
1187 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
1188 if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
1189 SSIZE_T res = REAL(writev)(fd, iov, iovcnt);
1190 if (res > 0) read_iovec(ctx, iov, iovcnt, res);
1191 return res;
1192}
1193#define INIT_WRITEV COMMON_INTERCEPT_FUNCTION(writev)
1194#else
1195#define INIT_WRITEV
1196#endif
1197
1198#if SANITIZER_INTERCEPT_PWRITEV
1199INTERCEPTOR(SSIZE_T, pwritev, int fd, __sanitizer_iovec *iov, int iovcnt,
1200 OFF_T offset) {
1201 void *ctx;
1202 COMMON_INTERCEPTOR_ENTER(ctx, pwritev, fd, iov, iovcnt, offset);
1203 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
1204 if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
1205 SSIZE_T res = REAL(pwritev)(fd, iov, iovcnt, offset);
1206 if (res > 0) read_iovec(ctx, iov, iovcnt, res);
1207 return res;
1208}
1209#define INIT_PWRITEV COMMON_INTERCEPT_FUNCTION(pwritev)
1210#else
1211#define INIT_PWRITEV
1212#endif
1213
1214#if SANITIZER_INTERCEPT_PWRITEV64
1215INTERCEPTOR(SSIZE_T, pwritev64, int fd, __sanitizer_iovec *iov, int iovcnt,
1216 OFF64_T offset) {
1217 void *ctx;
1218 COMMON_INTERCEPTOR_ENTER(ctx, pwritev64, fd, iov, iovcnt, offset);
1219 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
1220 if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
1221 SSIZE_T res = REAL(pwritev64)(fd, iov, iovcnt, offset);
1222 if (res > 0) read_iovec(ctx, iov, iovcnt, res);
1223 return res;
1224}
1225#define INIT_PWRITEV64 COMMON_INTERCEPT_FUNCTION(pwritev64)
1226#else
1227#define INIT_PWRITEV64
1228#endif
1229
1230#if SANITIZER_INTERCEPT_FGETS
1231INTERCEPTOR(char *, fgets, char *s, SIZE_T size, void *file) {
1232 // libc file streams can call user-supplied functions, see fopencookie.
1233 void *ctx;
1234 COMMON_INTERCEPTOR_ENTER(ctx, fgets, s, size, file);
1235 // FIXME: under ASan the call below may write to freed memory and corrupt
1236 // its metadata. See
1237 // https://github.com/google/sanitizers/issues/321.
1238 char *res = REAL(fgets)(s, size, file);
1239 if (res)
1240 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1);
1241 return res;
1242}
1243#define INIT_FGETS COMMON_INTERCEPT_FUNCTION(fgets)
1244#else
1245#define INIT_FGETS
1246#endif
1247
1248#if SANITIZER_INTERCEPT_FPUTS
1249INTERCEPTOR_WITH_SUFFIX(int, fputs, char *s, void *file) {
1250 // libc file streams can call user-supplied functions, see fopencookie.
1251 void *ctx;
1252 COMMON_INTERCEPTOR_ENTER(ctx, fputs, s, file);
1253 if (!SANITIZER_MAC || s) { // `fputs(NULL, file)` is supported on Darwin.
1254 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, REAL(strlen)(s) + 1);
1255 }
1256 return REAL(fputs)(s, file);
1257}
1258#define INIT_FPUTS COMMON_INTERCEPT_FUNCTION(fputs)
1259#else
1260#define INIT_FPUTS
1261#endif
1262
1263#if SANITIZER_INTERCEPT_PUTS
1264INTERCEPTOR(int, puts, char *s) {
1265 // libc file streams can call user-supplied functions, see fopencookie.
1266 void *ctx;
1267 COMMON_INTERCEPTOR_ENTER(ctx, puts, s);
1268 if (!SANITIZER_MAC || s) { // `puts(NULL)` is supported on Darwin.
1269 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, REAL(strlen)(s) + 1);
1270 }
1271 return REAL(puts)(s);
1272}
1273#define INIT_PUTS COMMON_INTERCEPT_FUNCTION(puts)
1274#else
1275#define INIT_PUTS
1276#endif
1277
1278#if SANITIZER_INTERCEPT_PRCTL
1279INTERCEPTOR(int, prctl, int option, unsigned long arg2, unsigned long arg3,
1280 unsigned long arg4, unsigned long arg5) {
1281 void *ctx;
1282 COMMON_INTERCEPTOR_ENTER(ctx, prctl, option, arg2, arg3, arg4, arg5);
1283 static const int PR_SET_NAME = 15;
1284 int res = REAL(prctl(option, arg2, arg3, arg4, arg5));
1285 if (option == PR_SET_NAME) {
1286 char buff[16];
1287 internal_strncpy(buff, (char *)arg2, 15);
1288 buff[15] = 0;
1289 COMMON_INTERCEPTOR_SET_THREAD_NAME(ctx, buff);
1290 }
1291 return res;
1292}
1293#define INIT_PRCTL COMMON_INTERCEPT_FUNCTION(prctl)
1294#else
1295#define INIT_PRCTL
1296#endif // SANITIZER_INTERCEPT_PRCTL
1297
1298#if SANITIZER_INTERCEPT_TIME
1299INTERCEPTOR(unsigned long, time, unsigned long *t) {
1300 void *ctx;
1301 COMMON_INTERCEPTOR_ENTER(ctx, time, t);
1302 unsigned long local_t;
1303 unsigned long res = REAL(time)(&local_t);
1304 if (t && res != (unsigned long)-1) {
1305 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, t, sizeof(*t));
1306 *t = local_t;
1307 }
1308 return res;
1309}
1310#define INIT_TIME COMMON_INTERCEPT_FUNCTION(time);
1311#else
1312#define INIT_TIME
1313#endif // SANITIZER_INTERCEPT_TIME
1314
1315#if SANITIZER_INTERCEPT_LOCALTIME_AND_FRIENDS
1316static void unpoison_tm(void *ctx, __sanitizer_tm *tm) {
1317 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tm, sizeof(*tm));
1318#if !SANITIZER_SOLARIS
1319 if (tm->tm_zone) {
1320 // Can not use COMMON_INTERCEPTOR_WRITE_RANGE here, because tm->tm_zone
1321 // can point to shared memory and tsan would report a data race.
1322 COMMON_INTERCEPTOR_INITIALIZE_RANGE(tm->tm_zone,
1323 REAL(strlen(tm->tm_zone)) + 1);
1324 }
1325#endif
1326}
1327INTERCEPTOR(__sanitizer_tm *, localtime, unsigned long *timep) {
1328 void *ctx;
1329 COMMON_INTERCEPTOR_ENTER(ctx, localtime, timep);
1330 __sanitizer_tm *res = REAL(localtime)(timep);
1331 if (res) {
1332 COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
1333 unpoison_tm(ctx, res);
1334 }
1335 return res;
1336}
1337INTERCEPTOR(__sanitizer_tm *, localtime_r, unsigned long *timep, void *result) {
1338 void *ctx;
1339 COMMON_INTERCEPTOR_ENTER(ctx, localtime_r, timep, result);
1340 __sanitizer_tm *res = REAL(localtime_r)(timep, result);
1341 if (res) {
1342 COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
1343 unpoison_tm(ctx, res);
1344 }
1345 return res;
1346}
1347INTERCEPTOR(__sanitizer_tm *, gmtime, unsigned long *timep) {
1348 void *ctx;
1349 COMMON_INTERCEPTOR_ENTER(ctx, gmtime, timep);
1350 __sanitizer_tm *res = REAL(gmtime)(timep);
1351 if (res) {
1352 COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
1353 unpoison_tm(ctx, res);
1354 }
1355 return res;
1356}
1357INTERCEPTOR(__sanitizer_tm *, gmtime_r, unsigned long *timep, void *result) {
1358 void *ctx;
1359 COMMON_INTERCEPTOR_ENTER(ctx, gmtime_r, timep, result);
1360 __sanitizer_tm *res = REAL(gmtime_r)(timep, result);
1361 if (res) {
1362 COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
1363 unpoison_tm(ctx, res);
1364 }
1365 return res;
1366}
1367INTERCEPTOR(char *, ctime, unsigned long *timep) {
1368 void *ctx;
1369 COMMON_INTERCEPTOR_ENTER(ctx, ctime, timep);
1370 // FIXME: under ASan the call below may write to freed memory and corrupt
1371 // its metadata. See
1372 // https://github.com/google/sanitizers/issues/321.
1373 char *res = REAL(ctime)(timep);
1374 if (res) {
1375 COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
1376 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
1377 }
1378 return res;
1379}
1380INTERCEPTOR(char *, ctime_r, unsigned long *timep, char *result) {
1381 void *ctx;
1382 COMMON_INTERCEPTOR_ENTER(ctx, ctime_r, timep, result);
1383 // FIXME: under ASan the call below may write to freed memory and corrupt
1384 // its metadata. See
1385 // https://github.com/google/sanitizers/issues/321.
1386 char *res = REAL(ctime_r)(timep, result);
1387 if (res) {
1388 COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
1389 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
1390 }
1391 return res;
1392}
1393INTERCEPTOR(char *, asctime, __sanitizer_tm *tm) {
1394 void *ctx;
1395 COMMON_INTERCEPTOR_ENTER(ctx, asctime, tm);
1396 // FIXME: under ASan the call below may write to freed memory and corrupt
1397 // its metadata. See
1398 // https://github.com/google/sanitizers/issues/321.
1399 char *res = REAL(asctime)(tm);
1400 if (res) {
1401 COMMON_INTERCEPTOR_READ_RANGE(ctx, tm, sizeof(*tm));
1402 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
1403 }
1404 return res;
1405}
1406INTERCEPTOR(char *, asctime_r, __sanitizer_tm *tm, char *result) {
1407 void *ctx;
1408 COMMON_INTERCEPTOR_ENTER(ctx, asctime_r, tm, result);
1409 // FIXME: under ASan the call below may write to freed memory and corrupt
1410 // its metadata. See
1411 // https://github.com/google/sanitizers/issues/321.
1412 char *res = REAL(asctime_r)(tm, result);
1413 if (res) {
1414 COMMON_INTERCEPTOR_READ_RANGE(ctx, tm, sizeof(*tm));
1415 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
1416 }
1417 return res;
1418}
1419INTERCEPTOR(long, mktime, __sanitizer_tm *tm) {
1420 void *ctx;
1421 COMMON_INTERCEPTOR_ENTER(ctx, mktime, tm);
1422 COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_sec, sizeof(tm->tm_sec));
1423 COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_min, sizeof(tm->tm_min));
1424 COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_hour, sizeof(tm->tm_hour));
1425 COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_mday, sizeof(tm->tm_mday));
1426 COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_mon, sizeof(tm->tm_mon));
1427 COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_year, sizeof(tm->tm_year));
1428 COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_isdst, sizeof(tm->tm_isdst));
1429 long res = REAL(mktime)(tm);
1430 if (res != -1) unpoison_tm(ctx, tm);
1431 return res;
1432}
1433#define INIT_LOCALTIME_AND_FRIENDS \
1434 COMMON_INTERCEPT_FUNCTION(localtime); \
1435 COMMON_INTERCEPT_FUNCTION(localtime_r); \
1436 COMMON_INTERCEPT_FUNCTION(gmtime); \
1437 COMMON_INTERCEPT_FUNCTION(gmtime_r); \
1438 COMMON_INTERCEPT_FUNCTION(ctime); \
1439 COMMON_INTERCEPT_FUNCTION(ctime_r); \
1440 COMMON_INTERCEPT_FUNCTION(asctime); \
1441 COMMON_INTERCEPT_FUNCTION(asctime_r); \
1442 COMMON_INTERCEPT_FUNCTION(mktime);
1443#else
1444#define INIT_LOCALTIME_AND_FRIENDS
1445#endif // SANITIZER_INTERCEPT_LOCALTIME_AND_FRIENDS
1446
1447#if SANITIZER_INTERCEPT_STRPTIME
1448INTERCEPTOR(char *, strptime, char *s, char *format, __sanitizer_tm *tm) {
1449 void *ctx;
1450 COMMON_INTERCEPTOR_ENTER(ctx, strptime, s, format, tm);
1451 if (format)
1452 COMMON_INTERCEPTOR_READ_RANGE(ctx, format, REAL(strlen)(format) + 1);
1453 // FIXME: under ASan the call below may write to freed memory and corrupt
1454 // its metadata. See
1455 // https://github.com/google/sanitizers/issues/321.
1456 char *res = REAL(strptime)(s, format, tm);
1457 COMMON_INTERCEPTOR_READ_STRING(ctx, s, res ? res - s : 0);
1458 if (res && tm) {
1459 // Do not call unpoison_tm here, because strptime does not, in fact,
1460 // initialize the entire struct tm. For example, tm_zone pointer is left
1461 // uninitialized.
1462 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tm, sizeof(*tm));
1463 }
1464 return res;
1465}
1466#define INIT_STRPTIME COMMON_INTERCEPT_FUNCTION(strptime);
1467#else
1468#define INIT_STRPTIME
1469#endif
1470
1471#if SANITIZER_INTERCEPT_SCANF || SANITIZER_INTERCEPT_PRINTF
1472#include "sanitizer_common_interceptors_format.inc"
1473
1474#define FORMAT_INTERCEPTOR_IMPL(name, vname, ...) \
1475 { \
1476 void *ctx; \
1477 va_list ap; \
1478 va_start(ap, format); \
1479 COMMON_INTERCEPTOR_ENTER(ctx, vname, __VA_ARGS__, ap); \
1480 int res = WRAP(vname)(__VA_ARGS__, ap); \
1481 va_end(ap); \
1482 return res; \
1483 }
1484
1485#endif
1486
1487#if SANITIZER_INTERCEPT_SCANF
1488
1489#define VSCANF_INTERCEPTOR_IMPL(vname, allowGnuMalloc, ...) \
1490 { \
1491 void *ctx; \
1492 COMMON_INTERCEPTOR_ENTER(ctx, vname, __VA_ARGS__); \
1493 va_list aq; \
1494 va_copy(aq, ap); \
1495 int res = REAL(vname)(__VA_ARGS__); \
1496 if (res > 0) \
1497 scanf_common(ctx, res, allowGnuMalloc, format, aq); \
1498 va_end(aq); \
1499 return res; \
1500 }
1501
1502INTERCEPTOR(int, vscanf, const char *format, va_list ap)
1503VSCANF_INTERCEPTOR_IMPL(vscanf, true, format, ap)
1504
1505INTERCEPTOR(int, vsscanf, const char *str, const char *format, va_list ap)
1506VSCANF_INTERCEPTOR_IMPL(vsscanf, true, str, format, ap)
1507
1508INTERCEPTOR(int, vfscanf, void *stream, const char *format, va_list ap)
1509VSCANF_INTERCEPTOR_IMPL(vfscanf, true, stream, format, ap)
1510
1511#if SANITIZER_INTERCEPT_ISOC99_SCANF
1512INTERCEPTOR(int, __isoc99_vscanf, const char *format, va_list ap)
1513VSCANF_INTERCEPTOR_IMPL(__isoc99_vscanf, false, format, ap)
1514
1515INTERCEPTOR(int, __isoc99_vsscanf, const char *str, const char *format,
1516 va_list ap)
1517VSCANF_INTERCEPTOR_IMPL(__isoc99_vsscanf, false, str, format, ap)
1518
1519INTERCEPTOR(int, __isoc99_vfscanf, void *stream, const char *format, va_list ap)
1520VSCANF_INTERCEPTOR_IMPL(__isoc99_vfscanf, false, stream, format, ap)
1521#endif // SANITIZER_INTERCEPT_ISOC99_SCANF
1522
1523INTERCEPTOR(int, scanf, const char *format, ...)
1524FORMAT_INTERCEPTOR_IMPL(scanf, vscanf, format)
1525
1526INTERCEPTOR(int, fscanf, void *stream, const char *format, ...)
1527FORMAT_INTERCEPTOR_IMPL(fscanf, vfscanf, stream, format)
1528
1529INTERCEPTOR(int, sscanf, const char *str, const char *format, ...)
1530FORMAT_INTERCEPTOR_IMPL(sscanf, vsscanf, str, format)
1531
1532#if SANITIZER_INTERCEPT_ISOC99_SCANF
1533INTERCEPTOR(int, __isoc99_scanf, const char *format, ...)
1534FORMAT_INTERCEPTOR_IMPL(__isoc99_scanf, __isoc99_vscanf, format)
1535
1536INTERCEPTOR(int, __isoc99_fscanf, void *stream, const char *format, ...)
1537FORMAT_INTERCEPTOR_IMPL(__isoc99_fscanf, __isoc99_vfscanf, stream, format)
1538
1539INTERCEPTOR(int, __isoc99_sscanf, const char *str, const char *format, ...)
1540FORMAT_INTERCEPTOR_IMPL(__isoc99_sscanf, __isoc99_vsscanf, str, format)
1541#endif
1542
1543#endif
1544
1545#if SANITIZER_INTERCEPT_SCANF
1546#define INIT_SCANF \
1547 COMMON_INTERCEPT_FUNCTION_LDBL(scanf); \
1548 COMMON_INTERCEPT_FUNCTION_LDBL(sscanf); \
1549 COMMON_INTERCEPT_FUNCTION_LDBL(fscanf); \
1550 COMMON_INTERCEPT_FUNCTION_LDBL(vscanf); \
1551 COMMON_INTERCEPT_FUNCTION_LDBL(vsscanf); \
1552 COMMON_INTERCEPT_FUNCTION_LDBL(vfscanf);
1553#else
1554#define INIT_SCANF
1555#endif
1556
1557#if SANITIZER_INTERCEPT_ISOC99_SCANF
1558#define INIT_ISOC99_SCANF \
1559 COMMON_INTERCEPT_FUNCTION(__isoc99_scanf); \
1560 COMMON_INTERCEPT_FUNCTION(__isoc99_sscanf); \
1561 COMMON_INTERCEPT_FUNCTION(__isoc99_fscanf); \
1562 COMMON_INTERCEPT_FUNCTION(__isoc99_vscanf); \
1563 COMMON_INTERCEPT_FUNCTION(__isoc99_vsscanf); \
1564 COMMON_INTERCEPT_FUNCTION(__isoc99_vfscanf);
1565#else
1566#define INIT_ISOC99_SCANF
1567#endif
1568
1569#if SANITIZER_INTERCEPT_PRINTF
1570
1571#define VPRINTF_INTERCEPTOR_ENTER(vname, ...) \
1572 void *ctx; \
1573 COMMON_INTERCEPTOR_ENTER(ctx, vname, __VA_ARGS__); \
1574 va_list aq; \
1575 va_copy(aq, ap);
1576
1577#define VPRINTF_INTERCEPTOR_RETURN() \
1578 va_end(aq);
1579
1580#define VPRINTF_INTERCEPTOR_IMPL(vname, ...) \
1581 { \
1582 VPRINTF_INTERCEPTOR_ENTER(vname, __VA_ARGS__); \
1583 if (common_flags()->check_printf) \
1584 printf_common(ctx, format, aq); \
1585 int res = REAL(vname)(__VA_ARGS__); \
1586 VPRINTF_INTERCEPTOR_RETURN(); \
1587 return res; \
1588 }
1589
1590// FIXME: under ASan the REAL() call below may write to freed memory and
1591// corrupt its metadata. See
1592// https://github.com/google/sanitizers/issues/321.
1593#define VSPRINTF_INTERCEPTOR_IMPL(vname, str, ...) \
1594 { \
1595 VPRINTF_INTERCEPTOR_ENTER(vname, str, __VA_ARGS__) \
1596 if (common_flags()->check_printf) { \
1597 printf_common(ctx, format, aq); \
1598 } \
1599 int res = REAL(vname)(str, __VA_ARGS__); \
1600 if (res >= 0) { \
1601 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, str, res + 1); \
1602 } \
1603 VPRINTF_INTERCEPTOR_RETURN(); \
1604 return res; \
1605 }
1606
1607// FIXME: under ASan the REAL() call below may write to freed memory and
1608// corrupt its metadata. See
1609// https://github.com/google/sanitizers/issues/321.
1610#define VSNPRINTF_INTERCEPTOR_IMPL(vname, str, size, ...) \
1611 { \
1612 VPRINTF_INTERCEPTOR_ENTER(vname, str, size, __VA_ARGS__) \
1613 if (common_flags()->check_printf) { \
1614 printf_common(ctx, format, aq); \
1615 } \
1616 int res = REAL(vname)(str, size, __VA_ARGS__); \
1617 if (res >= 0) { \
1618 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, str, Min(size, (SIZE_T)(res + 1))); \
1619 } \
1620 VPRINTF_INTERCEPTOR_RETURN(); \
1621 return res; \
1622 }
1623
1624// FIXME: under ASan the REAL() call below may write to freed memory and
1625// corrupt its metadata. See
1626// https://github.com/google/sanitizers/issues/321.
1627#define VASPRINTF_INTERCEPTOR_IMPL(vname, strp, ...) \
1628 { \
1629 VPRINTF_INTERCEPTOR_ENTER(vname, strp, __VA_ARGS__) \
1630 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, strp, sizeof(char *)); \
1631 if (common_flags()->check_printf) { \
1632 printf_common(ctx, format, aq); \
1633 } \
1634 int res = REAL(vname)(strp, __VA_ARGS__); \
1635 if (res >= 0) { \
1636 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *strp, res + 1); \
1637 } \
1638 VPRINTF_INTERCEPTOR_RETURN(); \
1639 return res; \
1640 }
1641
1642INTERCEPTOR(int, vprintf, const char *format, va_list ap)
1643VPRINTF_INTERCEPTOR_IMPL(vprintf, format, ap)
1644
1645INTERCEPTOR(int, vfprintf, __sanitizer_FILE *stream, const char *format,
1646 va_list ap)
1647VPRINTF_INTERCEPTOR_IMPL(vfprintf, stream, format, ap)
1648
1649INTERCEPTOR(int, vsnprintf, char *str, SIZE_T size, const char *format,
1650 va_list ap)
1651VSNPRINTF_INTERCEPTOR_IMPL(vsnprintf, str, size, format, ap)
1652
1653#if SANITIZER_INTERCEPT___PRINTF_CHK
1654INTERCEPTOR(int, __vsnprintf_chk, char *str, SIZE_T size, int flag,
1655 SIZE_T size_to, const char *format, va_list ap)
1656VSNPRINTF_INTERCEPTOR_IMPL(vsnprintf, str, size, format, ap)
1657#endif
1658
1659#if SANITIZER_INTERCEPT_PRINTF_L
1660INTERCEPTOR(int, vsnprintf_l, char *str, SIZE_T size, void *loc,
1661 const char *format, va_list ap)
1662VSNPRINTF_INTERCEPTOR_IMPL(vsnprintf_l, str, size, loc, format, ap)
1663
1664INTERCEPTOR(int, snprintf_l, char *str, SIZE_T size, void *loc,
1665 const char *format, ...)
1666FORMAT_INTERCEPTOR_IMPL(snprintf_l, vsnprintf_l, str, size, loc, format)
1667#endif // SANITIZER_INTERCEPT_PRINTF_L
1668
1669INTERCEPTOR(int, vsprintf, char *str, const char *format, va_list ap)
1670VSPRINTF_INTERCEPTOR_IMPL(vsprintf, str, format, ap)
1671
1672#if SANITIZER_INTERCEPT___PRINTF_CHK
1673INTERCEPTOR(int, __vsprintf_chk, char *str, int flag, SIZE_T size_to,
1674 const char *format, va_list ap)
1675VSPRINTF_INTERCEPTOR_IMPL(vsprintf, str, format, ap)
1676#endif
1677
1678INTERCEPTOR(int, vasprintf, char **strp, const char *format, va_list ap)
1679VASPRINTF_INTERCEPTOR_IMPL(vasprintf, strp, format, ap)
1680
1681#if SANITIZER_INTERCEPT_ISOC99_PRINTF
1682INTERCEPTOR(int, __isoc99_vprintf, const char *format, va_list ap)
1683VPRINTF_INTERCEPTOR_IMPL(__isoc99_vprintf, format, ap)
1684
1685INTERCEPTOR(int, __isoc99_vfprintf, __sanitizer_FILE *stream,
1686 const char *format, va_list ap)
1687VPRINTF_INTERCEPTOR_IMPL(__isoc99_vfprintf, stream, format, ap)
1688
1689INTERCEPTOR(int, __isoc99_vsnprintf, char *str, SIZE_T size, const char *format,
1690 va_list ap)
1691VSNPRINTF_INTERCEPTOR_IMPL(__isoc99_vsnprintf, str, size, format, ap)
1692
1693INTERCEPTOR(int, __isoc99_vsprintf, char *str, const char *format,
1694 va_list ap)
1695VSPRINTF_INTERCEPTOR_IMPL(__isoc99_vsprintf, str, format,
1696 ap)
1697
1698#endif // SANITIZER_INTERCEPT_ISOC99_PRINTF
1699
1700INTERCEPTOR(int, printf, const char *format, ...)
1701FORMAT_INTERCEPTOR_IMPL(printf, vprintf, format)
1702
1703INTERCEPTOR(int, fprintf, __sanitizer_FILE *stream, const char *format, ...)
1704FORMAT_INTERCEPTOR_IMPL(fprintf, vfprintf, stream, format)
1705
1706#if SANITIZER_INTERCEPT___PRINTF_CHK
1707INTERCEPTOR(int, __fprintf_chk, __sanitizer_FILE *stream, SIZE_T size,
1708 const char *format, ...)
1709FORMAT_INTERCEPTOR_IMPL(__fprintf_chk, vfprintf, stream, format)
1710#endif
1711
1712INTERCEPTOR(int, sprintf, char *str, const char *format, ...)
1713FORMAT_INTERCEPTOR_IMPL(sprintf, vsprintf, str, format)
1714
1715#if SANITIZER_INTERCEPT___PRINTF_CHK
1716INTERCEPTOR(int, __sprintf_chk, char *str, int flag, SIZE_T size_to,
1717 const char *format, ...)
1718FORMAT_INTERCEPTOR_IMPL(__sprintf_chk, vsprintf, str, format)
1719#endif
1720
1721INTERCEPTOR(int, snprintf, char *str, SIZE_T size, const char *format, ...)
1722FORMAT_INTERCEPTOR_IMPL(snprintf, vsnprintf, str, size, format)
1723
1724#if SANITIZER_INTERCEPT___PRINTF_CHK
1725INTERCEPTOR(int, __snprintf_chk, char *str, SIZE_T size, int flag,
1726 SIZE_T size_to, const char *format, ...)
1727FORMAT_INTERCEPTOR_IMPL(__snprintf_chk, vsnprintf, str, size, format)
1728#endif
1729
1730INTERCEPTOR(int, asprintf, char **strp, const char *format, ...)
1731FORMAT_INTERCEPTOR_IMPL(asprintf, vasprintf, strp, format)
1732
1733#if SANITIZER_INTERCEPT_ISOC99_PRINTF
1734INTERCEPTOR(int, __isoc99_printf, const char *format, ...)
1735FORMAT_INTERCEPTOR_IMPL(__isoc99_printf, __isoc99_vprintf, format)
1736
1737INTERCEPTOR(int, __isoc99_fprintf, __sanitizer_FILE *stream, const char *format,
1738 ...)
1739FORMAT_INTERCEPTOR_IMPL(__isoc99_fprintf, __isoc99_vfprintf, stream, format)
1740
1741INTERCEPTOR(int, __isoc99_sprintf, char *str, const char *format, ...)
1742FORMAT_INTERCEPTOR_IMPL(__isoc99_sprintf, __isoc99_vsprintf, str, format)
1743
1744INTERCEPTOR(int, __isoc99_snprintf, char *str, SIZE_T size,
1745 const char *format, ...)
1746FORMAT_INTERCEPTOR_IMPL(__isoc99_snprintf, __isoc99_vsnprintf, str, size,
1747 format)
1748
1749#endif // SANITIZER_INTERCEPT_ISOC99_PRINTF
1750
1751#endif // SANITIZER_INTERCEPT_PRINTF
1752
1753#if SANITIZER_INTERCEPT_PRINTF
1754#define INIT_PRINTF \
1755 COMMON_INTERCEPT_FUNCTION_LDBL(printf); \
1756 COMMON_INTERCEPT_FUNCTION_LDBL(sprintf); \
1757 COMMON_INTERCEPT_FUNCTION_LDBL(snprintf); \
1758 COMMON_INTERCEPT_FUNCTION_LDBL(asprintf); \
1759 COMMON_INTERCEPT_FUNCTION_LDBL(fprintf); \
1760 COMMON_INTERCEPT_FUNCTION_LDBL(vprintf); \
1761 COMMON_INTERCEPT_FUNCTION_LDBL(vsprintf); \
1762 COMMON_INTERCEPT_FUNCTION_LDBL(vsnprintf); \
1763 COMMON_INTERCEPT_FUNCTION_LDBL(vasprintf); \
1764 COMMON_INTERCEPT_FUNCTION_LDBL(vfprintf);
1765#else
1766#define INIT_PRINTF
1767#endif
1768
1769#if SANITIZER_INTERCEPT___PRINTF_CHK
1770#define INIT___PRINTF_CHK \
1771 COMMON_INTERCEPT_FUNCTION(__sprintf_chk); \
1772 COMMON_INTERCEPT_FUNCTION(__snprintf_chk); \
1773 COMMON_INTERCEPT_FUNCTION(__vsprintf_chk); \
1774 COMMON_INTERCEPT_FUNCTION(__vsnprintf_chk); \
1775 COMMON_INTERCEPT_FUNCTION(__fprintf_chk);
1776#else
1777#define INIT___PRINTF_CHK
1778#endif
1779
1780#if SANITIZER_INTERCEPT_PRINTF_L
1781#define INIT_PRINTF_L \
1782 COMMON_INTERCEPT_FUNCTION(snprintf_l); \
1783 COMMON_INTERCEPT_FUNCTION(vsnprintf_l);
1784#else
1785#define INIT_PRINTF_L
1786#endif
1787
1788#if SANITIZER_INTERCEPT_ISOC99_PRINTF
1789#define INIT_ISOC99_PRINTF \
1790 COMMON_INTERCEPT_FUNCTION(__isoc99_printf); \
1791 COMMON_INTERCEPT_FUNCTION(__isoc99_sprintf); \
1792 COMMON_INTERCEPT_FUNCTION(__isoc99_snprintf); \
1793 COMMON_INTERCEPT_FUNCTION(__isoc99_fprintf); \
1794 COMMON_INTERCEPT_FUNCTION(__isoc99_vprintf); \
1795 COMMON_INTERCEPT_FUNCTION(__isoc99_vsprintf); \
1796 COMMON_INTERCEPT_FUNCTION(__isoc99_vsnprintf); \
1797 COMMON_INTERCEPT_FUNCTION(__isoc99_vfprintf);
1798#else
1799#define INIT_ISOC99_PRINTF
1800#endif
1801
1802#if SANITIZER_INTERCEPT_IOCTL
1803#include "sanitizer_common_interceptors_ioctl.inc"
1804#include "sanitizer_interceptors_ioctl_netbsd.inc"
1805INTERCEPTOR(int, ioctl, int d, unsigned long request, ...) {
1806 // We need a frame pointer, because we call into ioctl_common_[pre|post] which
1807 // can trigger a report and we need to be able to unwind through this
1808 // function. On Mac in debug mode we might not have a frame pointer, because
1809 // ioctl_common_[pre|post] doesn't get inlined here.
1810 ENABLE_FRAME_POINTER;
1811
1812 void *ctx;
1813 va_list ap;
1814 va_start(ap, request);
1815 void *arg = va_arg(ap, void *);
1816 va_end(ap);
1817 COMMON_INTERCEPTOR_ENTER(ctx, ioctl, d, request, arg);
1818
1819 CHECK(ioctl_initialized);
1820
1821 // Note: TSan does not use common flags, and they are zero-initialized.
1822 // This effectively disables ioctl handling in TSan.
1823 if (!common_flags()->handle_ioctl) return REAL(ioctl)(d, request, arg);
1824
1825 // Although request is unsigned long, the rest of the interceptor uses it
1826 // as just "unsigned" to save space, because we know that all values fit in
1827 // "unsigned" - they are compile-time constants.
1828
1829 const ioctl_desc *desc = ioctl_lookup(request);
1830 ioctl_desc decoded_desc;
1831 if (!desc) {
1832 VPrintf(2, "Decoding unknown ioctl 0x%x\n", request);
1833 if (!ioctl_decode(request, &decoded_desc))
1834 Printf("WARNING: failed decoding unknown ioctl 0x%x\n", request);
1835 else
1836 desc = &decoded_desc;
1837 }
1838
1839 if (desc) ioctl_common_pre(ctx, desc, d, request, arg);
1840 int res = REAL(ioctl)(d, request, arg);
1841 // FIXME: some ioctls have different return values for success and failure.
1842 if (desc && res != -1) ioctl_common_post(ctx, desc, res, d, request, arg);
1843 return res;
1844}
1845#define INIT_IOCTL \
1846 ioctl_init(); \
1847 COMMON_INTERCEPT_FUNCTION(ioctl);
1848#else
1849#define INIT_IOCTL
1850#endif
1851
1852#if SANITIZER_POSIX
1853UNUSED static void unpoison_passwd(void *ctx, __sanitizer_passwd *pwd) {
1854 if (pwd) {
1855 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd, sizeof(*pwd));
1856 if (pwd->pw_name)
1857 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_name,
1858 REAL(strlen)(pwd->pw_name) + 1);
1859 if (pwd->pw_passwd)
1860 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_passwd,
1861 REAL(strlen)(pwd->pw_passwd) + 1);
1862#if !SANITIZER_ANDROID
1863 if (pwd->pw_gecos)
1864 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_gecos,
1865 REAL(strlen)(pwd->pw_gecos) + 1);
1866#endif
1867#if SANITIZER_MAC || SANITIZER_FREEBSD || SANITIZER_NETBSD
1868 if (pwd->pw_class)
1869 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_class,
1870 REAL(strlen)(pwd->pw_class) + 1);
1871#endif
1872 if (pwd->pw_dir)
1873 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_dir,
1874 REAL(strlen)(pwd->pw_dir) + 1);
1875 if (pwd->pw_shell)
1876 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_shell,
1877 REAL(strlen)(pwd->pw_shell) + 1);
1878 }
1879}
1880
1881UNUSED static void unpoison_group(void *ctx, __sanitizer_group *grp) {
1882 if (grp) {
1883 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, grp, sizeof(*grp));
1884 if (grp->gr_name)
1885 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, grp->gr_name,
1886 REAL(strlen)(grp->gr_name) + 1);
1887 if (grp->gr_passwd)
1888 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, grp->gr_passwd,
1889 REAL(strlen)(grp->gr_passwd) + 1);
1890 char **p = grp->gr_mem;
1891 for (; *p; ++p) {
1892 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, REAL(strlen)(*p) + 1);
1893 }
1894 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, grp->gr_mem,
1895 (p - grp->gr_mem + 1) * sizeof(*p));
1896 }
1897}
1898#endif // SANITIZER_POSIX
1899
1900#if SANITIZER_INTERCEPT_GETPWNAM_AND_FRIENDS
1901INTERCEPTOR(__sanitizer_passwd *, getpwnam, const char *name) {
1902 void *ctx;
1903 COMMON_INTERCEPTOR_ENTER(ctx, getpwnam, name);
1904 if (name)
1905 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
1906 __sanitizer_passwd *res = REAL(getpwnam)(name);
1907 unpoison_passwd(ctx, res);
1908 return res;
1909}
1910INTERCEPTOR(__sanitizer_passwd *, getpwuid, u32 uid) {
1911 void *ctx;
1912 COMMON_INTERCEPTOR_ENTER(ctx, getpwuid, uid);
1913 __sanitizer_passwd *res = REAL(getpwuid)(uid);
1914 unpoison_passwd(ctx, res);
1915 return res;
1916}
1917INTERCEPTOR(__sanitizer_group *, getgrnam, const char *name) {
1918 void *ctx;
1919 COMMON_INTERCEPTOR_ENTER(ctx, getgrnam, name);
1920 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
1921 __sanitizer_group *res = REAL(getgrnam)(name);
1922 unpoison_group(ctx, res);
1923 return res;
1924}
1925INTERCEPTOR(__sanitizer_group *, getgrgid, u32 gid) {
1926 void *ctx;
1927 COMMON_INTERCEPTOR_ENTER(ctx, getgrgid, gid);
1928 __sanitizer_group *res = REAL(getgrgid)(gid);
1929 unpoison_group(ctx, res);
1930 return res;
1931}
1932#define INIT_GETPWNAM_AND_FRIENDS \
1933 COMMON_INTERCEPT_FUNCTION(getpwnam); \
1934 COMMON_INTERCEPT_FUNCTION(getpwuid); \
1935 COMMON_INTERCEPT_FUNCTION(getgrnam); \
1936 COMMON_INTERCEPT_FUNCTION(getgrgid);
1937#else
1938#define INIT_GETPWNAM_AND_FRIENDS
1939#endif
1940
1941#if SANITIZER_INTERCEPT_GETPWNAM_R_AND_FRIENDS
1942INTERCEPTOR(int, getpwnam_r, const char *name, __sanitizer_passwd *pwd,
1943 char *buf, SIZE_T buflen, __sanitizer_passwd **result) {
1944 void *ctx;
1945 COMMON_INTERCEPTOR_ENTER(ctx, getpwnam_r, name, pwd, buf, buflen, result);
1946 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
1947 // FIXME: under ASan the call below may write to freed memory and corrupt
1948 // its metadata. See
1949 // https://github.com/google/sanitizers/issues/321.
1950 int res = REAL(getpwnam_r)(name, pwd, buf, buflen, result);
1951 if (!res && result)
1952 unpoison_passwd(ctx, *result);
1953 if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
1954 return res;
1955}
1956INTERCEPTOR(int, getpwuid_r, u32 uid, __sanitizer_passwd *pwd, char *buf,
1957 SIZE_T buflen, __sanitizer_passwd **result) {
1958 void *ctx;
1959 COMMON_INTERCEPTOR_ENTER(ctx, getpwuid_r, uid, pwd, buf, buflen, result);
1960 // FIXME: under ASan the call below may write to freed memory and corrupt
1961 // its metadata. See
1962 // https://github.com/google/sanitizers/issues/321.
1963 int res = REAL(getpwuid_r)(uid, pwd, buf, buflen, result);
1964 if (!res && result)
1965 unpoison_passwd(ctx, *result);
1966 if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
1967 return res;
1968}
1969INTERCEPTOR(int, getgrnam_r, const char *name, __sanitizer_group *grp,
1970 char *buf, SIZE_T buflen, __sanitizer_group **result) {
1971 void *ctx;
1972 COMMON_INTERCEPTOR_ENTER(ctx, getgrnam_r, name, grp, buf, buflen, result);
1973 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
1974 // FIXME: under ASan the call below may write to freed memory and corrupt
1975 // its metadata. See
1976 // https://github.com/google/sanitizers/issues/321.
1977 int res = REAL(getgrnam_r)(name, grp, buf, buflen, result);
1978 if (!res && result)
1979 unpoison_group(ctx, *result);
1980 if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
1981 return res;
1982}
1983INTERCEPTOR(int, getgrgid_r, u32 gid, __sanitizer_group *grp, char *buf,
1984 SIZE_T buflen, __sanitizer_group **result) {
1985 void *ctx;
1986 COMMON_INTERCEPTOR_ENTER(ctx, getgrgid_r, gid, grp, buf, buflen, result);
1987 // FIXME: under ASan the call below may write to freed memory and corrupt
1988 // its metadata. See
1989 // https://github.com/google/sanitizers/issues/321.
1990 int res = REAL(getgrgid_r)(gid, grp, buf, buflen, result);
1991 if (!res && result)
1992 unpoison_group(ctx, *result);
1993 if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
1994 return res;
1995}
1996#define INIT_GETPWNAM_R_AND_FRIENDS \
1997 COMMON_INTERCEPT_FUNCTION(getpwnam_r); \
1998 COMMON_INTERCEPT_FUNCTION(getpwuid_r); \
1999 COMMON_INTERCEPT_FUNCTION(getgrnam_r); \
2000 COMMON_INTERCEPT_FUNCTION(getgrgid_r);
2001#else
2002#define INIT_GETPWNAM_R_AND_FRIENDS
2003#endif
2004
2005#if SANITIZER_INTERCEPT_GETPWENT
2006INTERCEPTOR(__sanitizer_passwd *, getpwent, int dummy) {
2007 void *ctx;
2008 COMMON_INTERCEPTOR_ENTER(ctx, getpwent, dummy);
2009 __sanitizer_passwd *res = REAL(getpwent)(dummy);
2010 unpoison_passwd(ctx, res);
2011 return res;
2012}
2013INTERCEPTOR(__sanitizer_group *, getgrent, int dummy) {
2014 void *ctx;
2015 COMMON_INTERCEPTOR_ENTER(ctx, getgrent, dummy);
2016 __sanitizer_group *res = REAL(getgrent)(dummy);
2017 unpoison_group(ctx, res);
2018 return res;
2019}
2020#define INIT_GETPWENT \
2021 COMMON_INTERCEPT_FUNCTION(getpwent); \
2022 COMMON_INTERCEPT_FUNCTION(getgrent);
2023#else
2024#define INIT_GETPWENT
2025#endif
2026
2027#if SANITIZER_INTERCEPT_FGETPWENT
2028INTERCEPTOR(__sanitizer_passwd *, fgetpwent, void *fp) {
2029 void *ctx;
2030 COMMON_INTERCEPTOR_ENTER(ctx, fgetpwent, fp);
2031 __sanitizer_passwd *res = REAL(fgetpwent)(fp);
2032 unpoison_passwd(ctx, res);
2033 return res;
2034}
2035INTERCEPTOR(__sanitizer_group *, fgetgrent, void *fp) {
2036 void *ctx;
2037 COMMON_INTERCEPTOR_ENTER(ctx, fgetgrent, fp);
2038 __sanitizer_group *res = REAL(fgetgrent)(fp);
2039 unpoison_group(ctx, res);
2040 return res;
2041}
2042#define INIT_FGETPWENT \
2043 COMMON_INTERCEPT_FUNCTION(fgetpwent); \
2044 COMMON_INTERCEPT_FUNCTION(fgetgrent);
2045#else
2046#define INIT_FGETPWENT
2047#endif
2048
2049#if SANITIZER_INTERCEPT_GETPWENT_R
2050INTERCEPTOR(int, getpwent_r, __sanitizer_passwd *pwbuf, char *buf,
2051 SIZE_T buflen, __sanitizer_passwd **pwbufp) {
2052 void *ctx;
2053 COMMON_INTERCEPTOR_ENTER(ctx, getpwent_r, pwbuf, buf, buflen, pwbufp);
2054 // FIXME: under ASan the call below may write to freed memory and corrupt
2055 // its metadata. See
2056 // https://github.com/google/sanitizers/issues/321.
2057 int res = REAL(getpwent_r)(pwbuf, buf, buflen, pwbufp);
2058 if (!res && pwbufp)
2059 unpoison_passwd(ctx, *pwbufp);
2060 if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp));
2061 return res;
2062}
2063INTERCEPTOR(int, getgrent_r, __sanitizer_group *pwbuf, char *buf, SIZE_T buflen,
2064 __sanitizer_group **pwbufp) {
2065 void *ctx;
2066 COMMON_INTERCEPTOR_ENTER(ctx, getgrent_r, pwbuf, buf, buflen, pwbufp);
2067 // FIXME: under ASan the call below may write to freed memory and corrupt
2068 // its metadata. See
2069 // https://github.com/google/sanitizers/issues/321.
2070 int res = REAL(getgrent_r)(pwbuf, buf, buflen, pwbufp);
2071 if (!res && pwbufp)
2072 unpoison_group(ctx, *pwbufp);
2073 if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp));
2074 return res;
2075}
2076#define INIT_GETPWENT_R \
2077 COMMON_INTERCEPT_FUNCTION(getpwent_r); \
2078 COMMON_INTERCEPT_FUNCTION(getgrent_r);
2079#else
2080#define INIT_GETPWENT_R
2081#endif
2082
2083#if SANITIZER_INTERCEPT_FGETPWENT_R
2084INTERCEPTOR(int, fgetpwent_r, void *fp, __sanitizer_passwd *pwbuf, char *buf,
2085 SIZE_T buflen, __sanitizer_passwd **pwbufp) {
2086 void *ctx;
2087 COMMON_INTERCEPTOR_ENTER(ctx, fgetpwent_r, fp, pwbuf, buf, buflen, pwbufp);
2088 // FIXME: under ASan the call below may write to freed memory and corrupt
2089 // its metadata. See
2090 // https://github.com/google/sanitizers/issues/321.
2091 int res = REAL(fgetpwent_r)(fp, pwbuf, buf, buflen, pwbufp);
2092 if (!res && pwbufp)
2093 unpoison_passwd(ctx, *pwbufp);
2094 if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp));
2095 return res;
2096}
2097#define INIT_FGETPWENT_R \
2098 COMMON_INTERCEPT_FUNCTION(fgetpwent_r);
2099#else
2100#define INIT_FGETPWENT_R
2101#endif
2102
2103#if SANITIZER_INTERCEPT_FGETGRENT_R
2104INTERCEPTOR(int, fgetgrent_r, void *fp, __sanitizer_group *pwbuf, char *buf,
2105 SIZE_T buflen, __sanitizer_group **pwbufp) {
2106 void *ctx;
2107 COMMON_INTERCEPTOR_ENTER(ctx, fgetgrent_r, fp, pwbuf, buf, buflen, pwbufp);
2108 // FIXME: under ASan the call below may write to freed memory and corrupt
2109 // its metadata. See
2110 // https://github.com/google/sanitizers/issues/321.
2111 int res = REAL(fgetgrent_r)(fp, pwbuf, buf, buflen, pwbufp);
2112 if (!res && pwbufp)
2113 unpoison_group(ctx, *pwbufp);
2114 if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp));
2115 return res;
2116}
2117#define INIT_FGETGRENT_R \
2118 COMMON_INTERCEPT_FUNCTION(fgetgrent_r);
2119#else
2120#define INIT_FGETGRENT_R
2121#endif
2122
2123#if SANITIZER_INTERCEPT_SETPWENT
2124// The only thing these interceptors do is disable any nested interceptors.
2125// These functions may open nss modules and call uninstrumented functions from
2126// them, and we don't want things like strlen() to trigger.
2127INTERCEPTOR(void, setpwent, int dummy) {
2128 void *ctx;
2129 COMMON_INTERCEPTOR_ENTER(ctx, setpwent, dummy);
2130 REAL(setpwent)(dummy);
2131}
2132INTERCEPTOR(void, endpwent, int dummy) {
2133 void *ctx;
2134 COMMON_INTERCEPTOR_ENTER(ctx, endpwent, dummy);
2135 REAL(endpwent)(dummy);
2136}
2137INTERCEPTOR(void, setgrent, int dummy) {
2138 void *ctx;
2139 COMMON_INTERCEPTOR_ENTER(ctx, setgrent, dummy);
2140 REAL(setgrent)(dummy);
2141}
2142INTERCEPTOR(void, endgrent, int dummy) {
2143 void *ctx;
2144 COMMON_INTERCEPTOR_ENTER(ctx, endgrent, dummy);
2145 REAL(endgrent)(dummy);
2146}
2147#define INIT_SETPWENT \
2148 COMMON_INTERCEPT_FUNCTION(setpwent); \
2149 COMMON_INTERCEPT_FUNCTION(endpwent); \
2150 COMMON_INTERCEPT_FUNCTION(setgrent); \
2151 COMMON_INTERCEPT_FUNCTION(endgrent);
2152#else
2153#define INIT_SETPWENT
2154#endif
2155
2156#if SANITIZER_INTERCEPT_CLOCK_GETTIME
2157INTERCEPTOR(int, clock_getres, u32 clk_id, void *tp) {
2158 void *ctx;
2159 COMMON_INTERCEPTOR_ENTER(ctx, clock_getres, clk_id, tp);
2160 // FIXME: under ASan the call below may write to freed memory and corrupt
2161 // its metadata. See
2162 // https://github.com/google/sanitizers/issues/321.
2163 int res = REAL(clock_getres)(clk_id, tp);
2164 if (!res && tp) {
2165 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tp, struct_timespec_sz);
2166 }
2167 return res;
2168}
2169INTERCEPTOR(int, clock_gettime, u32 clk_id, void *tp) {
2170 void *ctx;
2171 COMMON_INTERCEPTOR_ENTER(ctx, clock_gettime, clk_id, tp);
2172 // FIXME: under ASan the call below may write to freed memory and corrupt
2173 // its metadata. See
2174 // https://github.com/google/sanitizers/issues/321.
2175 int res = REAL(clock_gettime)(clk_id, tp);
2176 if (!res) {
2177 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tp, struct_timespec_sz);
2178 }
2179 return res;
2180}
2181namespace __sanitizer {
2182extern "C" {
2183int real_clock_gettime(u32 clk_id, void *tp) {
2184 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
2185 return internal_clock_gettime(clk_id, tp);
2186 return REAL(clock_gettime)(clk_id, tp);
2187}
2188} // extern "C"
2189} // namespace __sanitizer
2190INTERCEPTOR(int, clock_settime, u32 clk_id, const void *tp) {
2191 void *ctx;
2192 COMMON_INTERCEPTOR_ENTER(ctx, clock_settime, clk_id, tp);
2193 COMMON_INTERCEPTOR_READ_RANGE(ctx, tp, struct_timespec_sz);
2194 return REAL(clock_settime)(clk_id, tp);
2195}
2196#define INIT_CLOCK_GETTIME \
2197 COMMON_INTERCEPT_FUNCTION(clock_getres); \
2198 COMMON_INTERCEPT_FUNCTION(clock_gettime); \
2199 COMMON_INTERCEPT_FUNCTION(clock_settime);
2200#else
2201#define INIT_CLOCK_GETTIME
2202#endif
2203
2204#if SANITIZER_INTERCEPT_CLOCK_GETCPUCLOCKID
2205INTERCEPTOR(int, clock_getcpuclockid, pid_t pid,
2206 __sanitizer_clockid_t *clockid) {
2207 void *ctx;
2208 COMMON_INTERCEPTOR_ENTER(ctx, clock_getcpuclockid, pid, clockid);
2209 int res = REAL(clock_getcpuclockid)(pid, clockid);
2210 if (!res && clockid) {
2211 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, clockid, sizeof *clockid);
2212 }
2213 return res;
2214}
2215
2216#define INIT_CLOCK_GETCPUCLOCKID \
2217 COMMON_INTERCEPT_FUNCTION(clock_getcpuclockid);
2218#else
2219#define INIT_CLOCK_GETCPUCLOCKID
2220#endif
2221
2222#if SANITIZER_INTERCEPT_GETITIMER
2223INTERCEPTOR(int, getitimer, int which, void *curr_value) {
2224 void *ctx;
2225 COMMON_INTERCEPTOR_ENTER(ctx, getitimer, which, curr_value);
2226 // FIXME: under ASan the call below may write to freed memory and corrupt
2227 // its metadata. See
2228 // https://github.com/google/sanitizers/issues/321.
2229 int res = REAL(getitimer)(which, curr_value);
2230 if (!res && curr_value) {
2231 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, curr_value, struct_itimerval_sz);
2232 }
2233 return res;
2234}
2235INTERCEPTOR(int, setitimer, int which, const void *new_value, void *old_value) {
2236 void *ctx;
2237 COMMON_INTERCEPTOR_ENTER(ctx, setitimer, which, new_value, old_value);
2238 if (new_value) {
2239 // itimerval can contain padding that may be legitimately uninitialized
2240 const struct __sanitizer_itimerval *nv =
2241 (const struct __sanitizer_itimerval *)new_value;
2242 COMMON_INTERCEPTOR_READ_RANGE(ctx, &nv->it_interval.tv_sec,
2243 sizeof(__sanitizer_time_t));
2244 COMMON_INTERCEPTOR_READ_RANGE(ctx, &nv->it_interval.tv_usec,
2245 sizeof(__sanitizer_suseconds_t));
2246 COMMON_INTERCEPTOR_READ_RANGE(ctx, &nv->it_value.tv_sec,
2247 sizeof(__sanitizer_time_t));
2248 COMMON_INTERCEPTOR_READ_RANGE(ctx, &nv->it_value.tv_usec,
2249 sizeof(__sanitizer_suseconds_t));
2250 }
2251 // FIXME: under ASan the call below may write to freed memory and corrupt
2252 // its metadata. See
2253 // https://github.com/google/sanitizers/issues/321.
2254 int res = REAL(setitimer)(which, new_value, old_value);
2255 if (!res && old_value) {
2256 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, old_value, struct_itimerval_sz);
2257 }
2258 return res;
2259}
2260#define INIT_GETITIMER \
2261 COMMON_INTERCEPT_FUNCTION(getitimer); \
2262 COMMON_INTERCEPT_FUNCTION(setitimer);
2263#else
2264#define INIT_GETITIMER
2265#endif
2266
2267#if SANITIZER_INTERCEPT_GLOB
2268static void unpoison_glob_t(void *ctx, __sanitizer_glob_t *pglob) {
2269 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pglob, sizeof(*pglob));
2270 // +1 for NULL pointer at the end.
2271 if (pglob->gl_pathv)
2272 COMMON_INTERCEPTOR_WRITE_RANGE(
2273 ctx, pglob->gl_pathv, (pglob->gl_pathc + 1) * sizeof(*pglob->gl_pathv));
2274 for (SIZE_T i = 0; i < pglob->gl_pathc; ++i) {
2275 char *p = pglob->gl_pathv[i];
2276 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, REAL(strlen)(p) + 1);
2277 }
2278}
2279
2280#if SANITIZER_SOLARIS
2281INTERCEPTOR(int, glob, const char *pattern, int flags,
2282 int (*errfunc)(const char *epath, int eerrno),
2283 __sanitizer_glob_t *pglob) {
2284 void *ctx;
2285 COMMON_INTERCEPTOR_ENTER(ctx, glob, pattern, flags, errfunc, pglob);
2286 COMMON_INTERCEPTOR_READ_STRING(ctx, pattern, 0);
2287 int res = REAL(glob)(pattern, flags, errfunc, pglob);
2288 if ((!res || res == glob_nomatch) && pglob) unpoison_glob_t(ctx, pglob);
2289 return res;
2290}
2291#else
2292static THREADLOCAL __sanitizer_glob_t *pglob_copy;
2293
2294static void wrapped_gl_closedir(void *dir) {
2295 COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
2296 pglob_copy->gl_closedir(dir);
2297}
2298
2299static void *wrapped_gl_readdir(void *dir) {
2300 COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
2301 return pglob_copy->gl_readdir(dir);
2302}
2303
2304static void *wrapped_gl_opendir(const char *s) {
2305 COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
2306 COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, REAL(strlen)(s) + 1);
2307 return pglob_copy->gl_opendir(s);
2308}
2309
2310static int wrapped_gl_lstat(const char *s, void *st) {
2311 COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
2312 COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, REAL(strlen)(s) + 1);
2313 return pglob_copy->gl_lstat(s, st);
2314}
2315
2316static int wrapped_gl_stat(const char *s, void *st) {
2317 COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
2318 COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, REAL(strlen)(s) + 1);
2319 return pglob_copy->gl_stat(s, st);
2320}
2321
2322static const __sanitizer_glob_t kGlobCopy = {
2323 0, 0, 0,
2324 0, wrapped_gl_closedir, wrapped_gl_readdir,
2325 wrapped_gl_opendir, wrapped_gl_lstat, wrapped_gl_stat};
2326
2327INTERCEPTOR(int, glob, const char *pattern, int flags,
2328 int (*errfunc)(const char *epath, int eerrno),
2329 __sanitizer_glob_t *pglob) {
2330 void *ctx;
2331 COMMON_INTERCEPTOR_ENTER(ctx, glob, pattern, flags, errfunc, pglob);
2332 COMMON_INTERCEPTOR_READ_STRING(ctx, pattern, 0);
2333 __sanitizer_glob_t glob_copy;
2334 internal_memcpy(&glob_copy, &kGlobCopy, sizeof(glob_copy));
2335 if (flags & glob_altdirfunc) {
2336 Swap(pglob->gl_closedir, glob_copy.gl_closedir);
2337 Swap(pglob->gl_readdir, glob_copy.gl_readdir);
2338 Swap(pglob->gl_opendir, glob_copy.gl_opendir);
2339 Swap(pglob->gl_lstat, glob_copy.gl_lstat);
2340 Swap(pglob->gl_stat, glob_copy.gl_stat);
2341 pglob_copy = &glob_copy;
2342 }
2343 int res = REAL(glob)(pattern, flags, errfunc, pglob);
2344 if (flags & glob_altdirfunc) {
2345 Swap(pglob->gl_closedir, glob_copy.gl_closedir);
2346 Swap(pglob->gl_readdir, glob_copy.gl_readdir);
2347 Swap(pglob->gl_opendir, glob_copy.gl_opendir);
2348 Swap(pglob->gl_lstat, glob_copy.gl_lstat);
2349 Swap(pglob->gl_stat, glob_copy.gl_stat);
2350 }
2351 pglob_copy = 0;
2352 if ((!res || res == glob_nomatch) && pglob) unpoison_glob_t(ctx, pglob);
2353 return res;
2354}
2355#endif // SANITIZER_SOLARIS
2356#define INIT_GLOB \
2357 COMMON_INTERCEPT_FUNCTION(glob);
2358#else // SANITIZER_INTERCEPT_GLOB
2359#define INIT_GLOB
2360#endif // SANITIZER_INTERCEPT_GLOB
2361
2362#if SANITIZER_INTERCEPT_GLOB64
2363INTERCEPTOR(int, glob64, const char *pattern, int flags,
2364 int (*errfunc)(const char *epath, int eerrno),
2365 __sanitizer_glob_t *pglob) {
2366 void *ctx;
2367 COMMON_INTERCEPTOR_ENTER(ctx, glob64, pattern, flags, errfunc, pglob);
2368 COMMON_INTERCEPTOR_READ_STRING(ctx, pattern, 0);
2369 __sanitizer_glob_t glob_copy;
2370 internal_memcpy(&glob_copy, &kGlobCopy, sizeof(glob_copy));
2371 if (flags & glob_altdirfunc) {
2372 Swap(pglob->gl_closedir, glob_copy.gl_closedir);
2373 Swap(pglob->gl_readdir, glob_copy.gl_readdir);
2374 Swap(pglob->gl_opendir, glob_copy.gl_opendir);
2375 Swap(pglob->gl_lstat, glob_copy.gl_lstat);
2376 Swap(pglob->gl_stat, glob_copy.gl_stat);
2377 pglob_copy = &glob_copy;
2378 }
2379 int res = REAL(glob64)(pattern, flags, errfunc, pglob);
2380 if (flags & glob_altdirfunc) {
2381 Swap(pglob->gl_closedir, glob_copy.gl_closedir);
2382 Swap(pglob->gl_readdir, glob_copy.gl_readdir);
2383 Swap(pglob->gl_opendir, glob_copy.gl_opendir);
2384 Swap(pglob->gl_lstat, glob_copy.gl_lstat);
2385 Swap(pglob->gl_stat, glob_copy.gl_stat);
2386 }
2387 pglob_copy = 0;
2388 if ((!res || res == glob_nomatch) && pglob) unpoison_glob_t(ctx, pglob);
2389 return res;
2390}
2391#define INIT_GLOB64 \
2392 COMMON_INTERCEPT_FUNCTION(glob64);
2393#else // SANITIZER_INTERCEPT_GLOB64
2394#define INIT_GLOB64
2395#endif // SANITIZER_INTERCEPT_GLOB64
2396
2397#if SANITIZER_INTERCEPT_WAIT
2398// According to sys/wait.h, wait(), waitid(), waitpid() may have symbol version
2399// suffixes on Darwin. See the declaration of INTERCEPTOR_WITH_SUFFIX for
2400// details.
2401INTERCEPTOR_WITH_SUFFIX(int, wait, int *status) {
2402 void *ctx;
2403 COMMON_INTERCEPTOR_ENTER(ctx, wait, status);
2404 // FIXME: under ASan the call below may write to freed memory and corrupt
2405 // its metadata. See
2406 // https://github.com/google/sanitizers/issues/321.
2407 int res = REAL(wait)(status);
2408 if (res != -1 && status)
2409 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status));
2410 return res;
2411}
2412// On FreeBSD id_t is always 64-bit wide.
2413#if SANITIZER_FREEBSD && (SANITIZER_WORDSIZE == 32)
2414INTERCEPTOR_WITH_SUFFIX(int, waitid, int idtype, long long id, void *infop,
2415 int options) {
2416#else
2417INTERCEPTOR_WITH_SUFFIX(int, waitid, int idtype, int id, void *infop,
2418 int options) {
2419#endif
2420 void *ctx;
2421 COMMON_INTERCEPTOR_ENTER(ctx, waitid, idtype, id, infop, options);
2422 // FIXME: under ASan the call below may write to freed memory and corrupt
2423 // its metadata. See
2424 // https://github.com/google/sanitizers/issues/321.
2425 int res = REAL(waitid)(idtype, id, infop, options);
2426 if (res != -1 && infop)
2427 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, infop, siginfo_t_sz);
2428 return res;
2429}
2430INTERCEPTOR_WITH_SUFFIX(int, waitpid, int pid, int *status, int options) {
2431 void *ctx;
2432 COMMON_INTERCEPTOR_ENTER(ctx, waitpid, pid, status, options);
2433 // FIXME: under ASan the call below may write to freed memory and corrupt
2434 // its metadata. See
2435 // https://github.com/google/sanitizers/issues/321.
2436 int res = REAL(waitpid)(pid, status, options);
2437 if (res != -1 && status)
2438 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status));
2439 return res;
2440}
2441INTERCEPTOR(int, wait3, int *status, int options, void *rusage) {
2442 void *ctx;
2443 COMMON_INTERCEPTOR_ENTER(ctx, wait3, status, options, rusage);
2444 // FIXME: under ASan the call below may write to freed memory and corrupt
2445 // its metadata. See
2446 // https://github.com/google/sanitizers/issues/321.
2447 int res = REAL(wait3)(status, options, rusage);
2448 if (res != -1) {
2449 if (status) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status));
2450 if (rusage) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz);
2451 }
2452 return res;
2453}
2454#if SANITIZER_ANDROID
2455INTERCEPTOR(int, __wait4, int pid, int *status, int options, void *rusage) {
2456 void *ctx;
2457 COMMON_INTERCEPTOR_ENTER(ctx, __wait4, pid, status, options, rusage);
2458 // FIXME: under ASan the call below may write to freed memory and corrupt
2459 // its metadata. See
2460 // https://github.com/google/sanitizers/issues/321.
2461 int res = REAL(__wait4)(pid, status, options, rusage);
2462 if (res != -1) {
2463 if (status) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status));
2464 if (rusage) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz);
2465 }
2466 return res;
2467}
2468#define INIT_WAIT4 COMMON_INTERCEPT_FUNCTION(__wait4);
2469#else
2470INTERCEPTOR(int, wait4, int pid, int *status, int options, void *rusage) {
2471 void *ctx;
2472 COMMON_INTERCEPTOR_ENTER(ctx, wait4, pid, status, options, rusage);
2473 // FIXME: under ASan the call below may write to freed memory and corrupt
2474 // its metadata. See
2475 // https://github.com/google/sanitizers/issues/321.
2476 int res = REAL(wait4)(pid, status, options, rusage);
2477 if (res != -1) {
2478 if (status) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status));
2479 if (rusage) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz);
2480 }
2481 return res;
2482}
2483#define INIT_WAIT4 COMMON_INTERCEPT_FUNCTION(wait4);
2484#endif // SANITIZER_ANDROID
2485#define INIT_WAIT \
2486 COMMON_INTERCEPT_FUNCTION(wait); \
2487 COMMON_INTERCEPT_FUNCTION(waitid); \
2488 COMMON_INTERCEPT_FUNCTION(waitpid); \
2489 COMMON_INTERCEPT_FUNCTION(wait3);
2490#else
2491#define INIT_WAIT
2492#define INIT_WAIT4
2493#endif
2494
2495#if SANITIZER_INTERCEPT_INET
2496INTERCEPTOR(char *, inet_ntop, int af, const void *src, char *dst, u32 size) {
2497 void *ctx;
2498 COMMON_INTERCEPTOR_ENTER(ctx, inet_ntop, af, src, dst, size);
2499 uptr sz = __sanitizer_in_addr_sz(af);
2500 if (sz) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sz);
2501 // FIXME: figure out read size based on the address family.
2502 // FIXME: under ASan the call below may write to freed memory and corrupt
2503 // its metadata. See
2504 // https://github.com/google/sanitizers/issues/321.
2505 char *res = REAL(inet_ntop)(af, src, dst, size);
2506 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
2507 return res;
2508}
2509INTERCEPTOR(int, inet_pton, int af, const char *src, void *dst) {
2510 void *ctx;
2511 COMMON_INTERCEPTOR_ENTER(ctx, inet_pton, af, src, dst);
2512 COMMON_INTERCEPTOR_READ_STRING(ctx, src, 0);
2513 // FIXME: figure out read size based on the address family.
2514 // FIXME: under ASan the call below may write to freed memory and corrupt
2515 // its metadata. See
2516 // https://github.com/google/sanitizers/issues/321.
2517 int res = REAL(inet_pton)(af, src, dst);
2518 if (res == 1) {
2519 uptr sz = __sanitizer_in_addr_sz(af);
2520 if (sz) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sz);
2521 }
2522 return res;
2523}
2524#define INIT_INET \
2525 COMMON_INTERCEPT_FUNCTION(inet_ntop); \
2526 COMMON_INTERCEPT_FUNCTION(inet_pton);
2527#else
2528#define INIT_INET
2529#endif
2530
2531#if SANITIZER_INTERCEPT_INET
2532INTERCEPTOR(int, inet_aton, const char *cp, void *dst) {
2533 void *ctx;
2534 COMMON_INTERCEPTOR_ENTER(ctx, inet_aton, cp, dst);
2535 if (cp) COMMON_INTERCEPTOR_READ_RANGE(ctx, cp, REAL(strlen)(cp) + 1);
2536 // FIXME: under ASan the call below may write to freed memory and corrupt
2537 // its metadata. See
2538 // https://github.com/google/sanitizers/issues/321.
2539 int res = REAL(inet_aton)(cp, dst);
2540 if (res != 0) {
2541 uptr sz = __sanitizer_in_addr_sz(af_inet);
2542 if (sz) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sz);
2543 }
2544 return res;
2545}
2546#define INIT_INET_ATON COMMON_INTERCEPT_FUNCTION(inet_aton);
2547#else
2548#define INIT_INET_ATON
2549#endif
2550
2551#if SANITIZER_INTERCEPT_PTHREAD_GETSCHEDPARAM
2552INTERCEPTOR(int, pthread_getschedparam, uptr thread, int *policy, int *param) {
2553 void *ctx;
2554 COMMON_INTERCEPTOR_ENTER(ctx, pthread_getschedparam, thread, policy, param);
2555 // FIXME: under ASan the call below may write to freed memory and corrupt
2556 // its metadata. See
2557 // https://github.com/google/sanitizers/issues/321.
2558 int res = REAL(pthread_getschedparam)(thread, policy, param);
2559 if (res == 0) {
2560 if (policy) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, policy, sizeof(*policy));
2561 if (param) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, param, sizeof(*param));
2562 }
2563 return res;
2564}
2565#define INIT_PTHREAD_GETSCHEDPARAM \
2566 COMMON_INTERCEPT_FUNCTION(pthread_getschedparam);
2567#else
2568#define INIT_PTHREAD_GETSCHEDPARAM
2569#endif
2570
2571#if SANITIZER_INTERCEPT_GETADDRINFO
2572INTERCEPTOR(int, getaddrinfo, char *node, char *service,
2573 struct __sanitizer_addrinfo *hints,
2574 struct __sanitizer_addrinfo **out) {
2575 void *ctx;
2576 COMMON_INTERCEPTOR_ENTER(ctx, getaddrinfo, node, service, hints, out);
2577 if (node) COMMON_INTERCEPTOR_READ_RANGE(ctx, node, REAL(strlen)(node) + 1);
2578 if (service)
2579 COMMON_INTERCEPTOR_READ_RANGE(ctx, service, REAL(strlen)(service) + 1);
2580 if (hints)
2581 COMMON_INTERCEPTOR_READ_RANGE(ctx, hints, sizeof(__sanitizer_addrinfo));
2582 // FIXME: under ASan the call below may write to freed memory and corrupt
2583 // its metadata. See
2584 // https://github.com/google/sanitizers/issues/321.
2585 int res = REAL(getaddrinfo)(node, service, hints, out);
2586 if (res == 0 && out) {
2587 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, out, sizeof(*out));
2588 struct __sanitizer_addrinfo *p = *out;
2589 while (p) {
2590 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
2591 if (p->ai_addr)
2592 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ai_addr, p->ai_addrlen);
2593 if (p->ai_canonname)
2594 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ai_canonname,
2595 REAL(strlen)(p->ai_canonname) + 1);
2596 p = p->ai_next;
2597 }
2598 }
2599 return res;
2600}
2601#define INIT_GETADDRINFO COMMON_INTERCEPT_FUNCTION(getaddrinfo);
2602#else
2603#define INIT_GETADDRINFO
2604#endif
2605
2606#if SANITIZER_INTERCEPT_GETNAMEINFO
2607INTERCEPTOR(int, getnameinfo, void *sockaddr, unsigned salen, char *host,
2608 unsigned hostlen, char *serv, unsigned servlen, int flags) {
2609 void *ctx;
2610 COMMON_INTERCEPTOR_ENTER(ctx, getnameinfo, sockaddr, salen, host, hostlen,
2611 serv, servlen, flags);
2612 // FIXME: consider adding READ_RANGE(sockaddr, salen)
2613 // There is padding in in_addr that may make this too noisy
2614 // FIXME: under ASan the call below may write to freed memory and corrupt
2615 // its metadata. See
2616 // https://github.com/google/sanitizers/issues/321.
2617 int res =
2618 REAL(getnameinfo)(sockaddr, salen, host, hostlen, serv, servlen, flags);
2619 if (res == 0) {
2620 if (host && hostlen)
2621 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, host, REAL(strlen)(host) + 1);
2622 if (serv && servlen)
2623 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, serv, REAL(strlen)(serv) + 1);
2624 }
2625 return res;
2626}
2627#define INIT_GETNAMEINFO COMMON_INTERCEPT_FUNCTION(getnameinfo);
2628#else
2629#define INIT_GETNAMEINFO
2630#endif
2631
2632#if SANITIZER_INTERCEPT_GETSOCKNAME
2633INTERCEPTOR(int, getsockname, int sock_fd, void *addr, int *addrlen) {
2634 void *ctx;
2635 COMMON_INTERCEPTOR_ENTER(ctx, getsockname, sock_fd, addr, addrlen);
2636 COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen));
2637 int addrlen_in = *addrlen;
2638 // FIXME: under ASan the call below may write to freed memory and corrupt
2639 // its metadata. See
2640 // https://github.com/google/sanitizers/issues/321.
2641 int res = REAL(getsockname)(sock_fd, addr, addrlen);
2642 if (res == 0) {
2643 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(addrlen_in, *addrlen));
2644 }
2645 return res;
2646}
2647#define INIT_GETSOCKNAME COMMON_INTERCEPT_FUNCTION(getsockname);
2648#else
2649#define INIT_GETSOCKNAME
2650#endif
2651
2652#if SANITIZER_INTERCEPT_GETHOSTBYNAME || SANITIZER_INTERCEPT_GETHOSTBYNAME_R
2653static void write_hostent(void *ctx, struct __sanitizer_hostent *h) {
2654 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h, sizeof(__sanitizer_hostent));
2655 if (h->h_name)
2656 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h->h_name, REAL(strlen)(h->h_name) + 1);
2657 char **p = h->h_aliases;
2658 while (*p) {
2659 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, REAL(strlen)(*p) + 1);
2660 ++p;
2661 }
2662 COMMON_INTERCEPTOR_WRITE_RANGE(
2663 ctx, h->h_aliases, (p - h->h_aliases + 1) * sizeof(*h->h_aliases));
2664 p = h->h_addr_list;
2665 while (*p) {
2666 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, h->h_length);
2667 ++p;
2668 }
2669 COMMON_INTERCEPTOR_WRITE_RANGE(
2670 ctx, h->h_addr_list, (p - h->h_addr_list + 1) * sizeof(*h->h_addr_list));
2671}
2672#endif
2673
2674#if SANITIZER_INTERCEPT_GETHOSTBYNAME
2675INTERCEPTOR(struct __sanitizer_hostent *, gethostbyname, char *name) {
2676 void *ctx;
2677 COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname, name);
2678 struct __sanitizer_hostent *res = REAL(gethostbyname)(name);
2679 if (res) write_hostent(ctx, res);
2680 return res;
2681}
2682
2683INTERCEPTOR(struct __sanitizer_hostent *, gethostbyaddr, void *addr, int len,
2684 int type) {
2685 void *ctx;
2686 COMMON_INTERCEPTOR_ENTER(ctx, gethostbyaddr, addr, len, type);
2687 COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, len);
2688 struct __sanitizer_hostent *res = REAL(gethostbyaddr)(addr, len, type);
2689 if (res) write_hostent(ctx, res);
2690 return res;
2691}
2692
2693INTERCEPTOR(struct __sanitizer_hostent *, gethostent, int fake) {
2694 void *ctx;
2695 COMMON_INTERCEPTOR_ENTER(ctx, gethostent, fake);
2696 struct __sanitizer_hostent *res = REAL(gethostent)(fake);
2697 if (res) write_hostent(ctx, res);
2698 return res;
2699}
2700#define INIT_GETHOSTBYNAME \
2701 COMMON_INTERCEPT_FUNCTION(gethostent); \
2702 COMMON_INTERCEPT_FUNCTION(gethostbyaddr); \
2703 COMMON_INTERCEPT_FUNCTION(gethostbyname);
2704#else
2705#define INIT_GETHOSTBYNAME
2706#endif // SANITIZER_INTERCEPT_GETHOSTBYNAME
2707
2708#if SANITIZER_INTERCEPT_GETHOSTBYNAME2
2709INTERCEPTOR(struct __sanitizer_hostent *, gethostbyname2, char *name, int af) {
2710 void *ctx;
2711 COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname2, name, af);
2712 struct __sanitizer_hostent *res = REAL(gethostbyname2)(name, af);
2713 if (res) write_hostent(ctx, res);
2714 return res;
2715}
2716#define INIT_GETHOSTBYNAME2 COMMON_INTERCEPT_FUNCTION(gethostbyname2);
2717#else
2718#define INIT_GETHOSTBYNAME2
2719#endif // SANITIZER_INTERCEPT_GETHOSTBYNAME2
2720
2721#if SANITIZER_INTERCEPT_GETHOSTBYNAME_R
2722INTERCEPTOR(int, gethostbyname_r, char *name, struct __sanitizer_hostent *ret,
2723 char *buf, SIZE_T buflen, __sanitizer_hostent **result,
2724 int *h_errnop) {
2725 void *ctx;
2726 COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname_r, name, ret, buf, buflen, result,
2727 h_errnop);
2728 // FIXME: under ASan the call below may write to freed memory and corrupt
2729 // its metadata. See
2730 // https://github.com/google/sanitizers/issues/321.
2731 int res = REAL(gethostbyname_r)(name, ret, buf, buflen, result, h_errnop);
2732 if (result) {
2733 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
2734 if (res == 0 && *result) write_hostent(ctx, *result);
2735 }
2736 if (h_errnop)
2737 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop));
2738 return res;
2739}
2740#define INIT_GETHOSTBYNAME_R COMMON_INTERCEPT_FUNCTION(gethostbyname_r);
2741#else
2742#define INIT_GETHOSTBYNAME_R
2743#endif
2744
2745#if SANITIZER_INTERCEPT_GETHOSTENT_R
2746INTERCEPTOR(int, gethostent_r, struct __sanitizer_hostent *ret, char *buf,
2747 SIZE_T buflen, __sanitizer_hostent **result, int *h_errnop) {
2748 void *ctx;
2749 COMMON_INTERCEPTOR_ENTER(ctx, gethostent_r, ret, buf, buflen, result,
2750 h_errnop);
2751 // FIXME: under ASan the call below may write to freed memory and corrupt
2752 // its metadata. See
2753 // https://github.com/google/sanitizers/issues/321.
2754 int res = REAL(gethostent_r)(ret, buf, buflen, result, h_errnop);
2755 if (result) {
2756 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
2757 if (res == 0 && *result) write_hostent(ctx, *result);
2758 }
2759 if (h_errnop)
2760 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop));
2761 return res;
2762}
2763#define INIT_GETHOSTENT_R \
2764 COMMON_INTERCEPT_FUNCTION(gethostent_r);
2765#else
2766#define INIT_GETHOSTENT_R
2767#endif
2768
2769#if SANITIZER_INTERCEPT_GETHOSTBYADDR_R
2770INTERCEPTOR(int, gethostbyaddr_r, void *addr, int len, int type,
2771 struct __sanitizer_hostent *ret, char *buf, SIZE_T buflen,
2772 __sanitizer_hostent **result, int *h_errnop) {
2773 void *ctx;
2774 COMMON_INTERCEPTOR_ENTER(ctx, gethostbyaddr_r, addr, len, type, ret, buf,
2775 buflen, result, h_errnop);
2776 COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, len);
2777 // FIXME: under ASan the call below may write to freed memory and corrupt
2778 // its metadata. See
2779 // https://github.com/google/sanitizers/issues/321.
2780 int res = REAL(gethostbyaddr_r)(addr, len, type, ret, buf, buflen, result,
2781 h_errnop);
2782 if (result) {
2783 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
2784 if (res == 0 && *result) write_hostent(ctx, *result);
2785 }
2786 if (h_errnop)
2787 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop));
2788 return res;
2789}
2790#define INIT_GETHOSTBYADDR_R \
2791 COMMON_INTERCEPT_FUNCTION(gethostbyaddr_r);
2792#else
2793#define INIT_GETHOSTBYADDR_R
2794#endif
2795
2796#if SANITIZER_INTERCEPT_GETHOSTBYNAME2_R
2797INTERCEPTOR(int, gethostbyname2_r, char *name, int af,
2798 struct __sanitizer_hostent *ret, char *buf, SIZE_T buflen,
2799 __sanitizer_hostent **result, int *h_errnop) {
2800 void *ctx;
2801 COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname2_r, name, af, ret, buf, buflen,
2802 result, h_errnop);
2803 // FIXME: under ASan the call below may write to freed memory and corrupt
2804 // its metadata. See
2805 // https://github.com/google/sanitizers/issues/321.
2806 int res =
2807 REAL(gethostbyname2_r)(name, af, ret, buf, buflen, result, h_errnop);
2808 if (result) {
2809 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
2810 if (res == 0 && *result) write_hostent(ctx, *result);
2811 }
2812 if (h_errnop)
2813 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop));
2814 return res;
2815}
2816#define INIT_GETHOSTBYNAME2_R \
2817 COMMON_INTERCEPT_FUNCTION(gethostbyname2_r);
2818#else
2819#define INIT_GETHOSTBYNAME2_R
2820#endif
2821
2822#if SANITIZER_INTERCEPT_GETSOCKOPT
2823INTERCEPTOR(int, getsockopt, int sockfd, int level, int optname, void *optval,
2824 int *optlen) {
2825 void *ctx;
2826 COMMON_INTERCEPTOR_ENTER(ctx, getsockopt, sockfd, level, optname, optval,
2827 optlen);
2828 if (optlen) COMMON_INTERCEPTOR_READ_RANGE(ctx, optlen, sizeof(*optlen));
2829 // FIXME: under ASan the call below may write to freed memory and corrupt
2830 // its metadata. See
2831 // https://github.com/google/sanitizers/issues/321.
2832 int res = REAL(getsockopt)(sockfd, level, optname, optval, optlen);
2833 if (res == 0)
2834 if (optval && optlen) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, optval, *optlen);
2835 return res;
2836}
2837#define INIT_GETSOCKOPT COMMON_INTERCEPT_FUNCTION(getsockopt);
2838#else
2839#define INIT_GETSOCKOPT
2840#endif
2841
2842#if SANITIZER_INTERCEPT_ACCEPT
2843INTERCEPTOR(int, accept, int fd, void *addr, unsigned *addrlen) {
2844 void *ctx;
2845 COMMON_INTERCEPTOR_ENTER(ctx, accept, fd, addr, addrlen);
2846 unsigned addrlen0 = 0;
2847 if (addrlen) {
2848 COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen));
2849 addrlen0 = *addrlen;
2850 }
2851 int fd2 = REAL(accept)(fd, addr, addrlen);
2852 if (fd2 >= 0) {
2853 if (fd >= 0) COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, fd2);
2854 if (addr && addrlen)
2855 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(*addrlen, addrlen0));
2856 }
2857 return fd2;
2858}
2859#define INIT_ACCEPT COMMON_INTERCEPT_FUNCTION(accept);
2860#else
2861#define INIT_ACCEPT
2862#endif
2863
2864#if SANITIZER_INTERCEPT_ACCEPT4
2865INTERCEPTOR(int, accept4, int fd, void *addr, unsigned *addrlen, int f) {
2866 void *ctx;
2867 COMMON_INTERCEPTOR_ENTER(ctx, accept4, fd, addr, addrlen, f);
2868 unsigned addrlen0 = 0;
2869 if (addrlen) {
2870 COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen));
2871 addrlen0 = *addrlen;
2872 }
2873 // FIXME: under ASan the call below may write to freed memory and corrupt
2874 // its metadata. See
2875 // https://github.com/google/sanitizers/issues/321.
2876 int fd2 = REAL(accept4)(fd, addr, addrlen, f);
2877 if (fd2 >= 0) {
2878 if (fd >= 0) COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, fd2);
2879 if (addr && addrlen)
2880 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(*addrlen, addrlen0));
2881 }
2882 return fd2;
2883}
2884#define INIT_ACCEPT4 COMMON_INTERCEPT_FUNCTION(accept4);
2885#else
2886#define INIT_ACCEPT4
2887#endif
2888
2889#if SANITIZER_INTERCEPT_PACCEPT
2890INTERCEPTOR(int, paccept, int fd, void *addr, unsigned *addrlen,
2891 __sanitizer_sigset_t *set, int f) {
2892 void *ctx;
2893 COMMON_INTERCEPTOR_ENTER(ctx, paccept, fd, addr, addrlen, set, f);
2894 unsigned addrlen0 = 0;
2895 if (addrlen) {
2896 COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen));
2897 addrlen0 = *addrlen;
2898 }
2899 if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set));
2900 int fd2 = REAL(paccept)(fd, addr, addrlen, set, f);
2901 if (fd2 >= 0) {
2902 if (fd >= 0) COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, fd2);
2903 if (addr && addrlen)
2904 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(*addrlen, addrlen0));
2905 }
2906 return fd2;
2907}
2908#define INIT_PACCEPT COMMON_INTERCEPT_FUNCTION(paccept);
2909#else
2910#define INIT_PACCEPT
2911#endif
2912
2913#if SANITIZER_INTERCEPT_MODF
2914INTERCEPTOR(double, modf, double x, double *iptr) {
2915 void *ctx;
2916 COMMON_INTERCEPTOR_ENTER(ctx, modf, x, iptr);
2917 // FIXME: under ASan the call below may write to freed memory and corrupt
2918 // its metadata. See
2919 // https://github.com/google/sanitizers/issues/321.
2920 double res = REAL(modf)(x, iptr);
2921 if (iptr) {
2922 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr));
2923 }
2924 return res;
2925}
2926INTERCEPTOR(float, modff, float x, float *iptr) {
2927 void *ctx;
2928 COMMON_INTERCEPTOR_ENTER(ctx, modff, x, iptr);
2929 // FIXME: under ASan the call below may write to freed memory and corrupt
2930 // its metadata. See
2931 // https://github.com/google/sanitizers/issues/321.
2932 float res = REAL(modff)(x, iptr);
2933 if (iptr) {
2934 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr));
2935 }
2936 return res;
2937}
2938INTERCEPTOR(long double, modfl, long double x, long double *iptr) {
2939 void *ctx;
2940 COMMON_INTERCEPTOR_ENTER(ctx, modfl, x, iptr);
2941 // FIXME: under ASan the call below may write to freed memory and corrupt
2942 // its metadata. See
2943 // https://github.com/google/sanitizers/issues/321.
2944 long double res = REAL(modfl)(x, iptr);
2945 if (iptr) {
2946 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr));
2947 }
2948 return res;
2949}
2950#define INIT_MODF \
2951 COMMON_INTERCEPT_FUNCTION(modf); \
2952 COMMON_INTERCEPT_FUNCTION(modff); \
2953 COMMON_INTERCEPT_FUNCTION_LDBL(modfl);
2954#else
2955#define INIT_MODF
2956#endif
2957
2958#if SANITIZER_INTERCEPT_RECVMSG || SANITIZER_INTERCEPT_RECVMMSG
2959static void write_msghdr(void *ctx, struct __sanitizer_msghdr *msg,
2960 SSIZE_T maxlen) {
2961 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg, sizeof(*msg));
2962 if (msg->msg_name && msg->msg_namelen)
2963 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_name, msg->msg_namelen);
2964 if (msg->msg_iov && msg->msg_iovlen)
2965 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_iov,
2966 sizeof(*msg->msg_iov) * msg->msg_iovlen);
2967 write_iovec(ctx, msg->msg_iov, msg->msg_iovlen, maxlen);
2968 if (msg->msg_control && msg->msg_controllen)
2969 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_control, msg->msg_controllen);
2970}
2971#endif
2972
2973#if SANITIZER_INTERCEPT_RECVMSG
2974INTERCEPTOR(SSIZE_T, recvmsg, int fd, struct __sanitizer_msghdr *msg,
2975 int flags) {
2976 void *ctx;
2977 COMMON_INTERCEPTOR_ENTER(ctx, recvmsg, fd, msg, flags);
2978 // FIXME: under ASan the call below may write to freed memory and corrupt
2979 // its metadata. See
2980 // https://github.com/google/sanitizers/issues/321.
2981 SSIZE_T res = REAL(recvmsg)(fd, msg, flags);
2982 if (res >= 0) {
2983 if (fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
2984 if (msg) {
2985 write_msghdr(ctx, msg, res);
2986 COMMON_INTERCEPTOR_HANDLE_RECVMSG(ctx, msg);
2987 }
2988 }
2989 return res;
2990}
2991#define INIT_RECVMSG COMMON_INTERCEPT_FUNCTION(recvmsg);
2992#else
2993#define INIT_RECVMSG
2994#endif
2995
2996#if SANITIZER_INTERCEPT_RECVMMSG
2997INTERCEPTOR(int, recvmmsg, int fd, struct __sanitizer_mmsghdr *msgvec,
2998 unsigned int vlen, int flags, void *timeout) {
2999 void *ctx;
3000 COMMON_INTERCEPTOR_ENTER(ctx, recvmmsg, fd, msgvec, vlen, flags, timeout);
3001 if (timeout) COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout, struct_timespec_sz);
3002 int res = REAL(recvmmsg)(fd, msgvec, vlen, flags, timeout);
3003 if (res >= 0) {
3004 if (fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
3005 for (int i = 0; i < res; ++i) {
3006 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &msgvec[i].msg_len,
3007 sizeof(msgvec[i].msg_len));
3008 write_msghdr(ctx, &msgvec[i].msg_hdr, msgvec[i].msg_len);
3009 COMMON_INTERCEPTOR_HANDLE_RECVMSG(ctx, &msgvec[i].msg_hdr);
3010 }
3011 }
3012 return res;
3013}
3014#define INIT_RECVMMSG COMMON_INTERCEPT_FUNCTION(recvmmsg);
3015#else
3016#define INIT_RECVMMSG
3017#endif
3018
3019#if SANITIZER_INTERCEPT_SENDMSG || SANITIZER_INTERCEPT_SENDMMSG
3020static void read_msghdr_control(void *ctx, void *control, uptr controllen) {
3021 const unsigned kCmsgDataOffset =
3022 RoundUpTo(sizeof(__sanitizer_cmsghdr), sizeof(uptr));
3023
3024 char *p = (char *)control;
3025 char *const control_end = p + controllen;
3026 while (true) {
3027 if (p + sizeof(__sanitizer_cmsghdr) > control_end) break;
3028 __sanitizer_cmsghdr *cmsg = (__sanitizer_cmsghdr *)p;
3029 COMMON_INTERCEPTOR_READ_RANGE(ctx, &cmsg->cmsg_len, sizeof(cmsg->cmsg_len));
3030
3031 if (p + RoundUpTo(cmsg->cmsg_len, sizeof(uptr)) > control_end) break;
3032
3033 COMMON_INTERCEPTOR_READ_RANGE(ctx, &cmsg->cmsg_level,
3034 sizeof(cmsg->cmsg_level));
3035 COMMON_INTERCEPTOR_READ_RANGE(ctx, &cmsg->cmsg_type,
3036 sizeof(cmsg->cmsg_type));
3037
3038 if (cmsg->cmsg_len > kCmsgDataOffset) {
3039 char *data = p + kCmsgDataOffset;
3040 unsigned data_len = cmsg->cmsg_len - kCmsgDataOffset;
3041 if (data_len > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, data, data_len);
3042 }
3043
3044 p += RoundUpTo(cmsg->cmsg_len, sizeof(uptr));
3045 }
3046}
3047
3048static void read_msghdr(void *ctx, struct __sanitizer_msghdr *msg,
3049 SSIZE_T maxlen) {
3050#define R(f) \
3051 COMMON_INTERCEPTOR_READ_RANGE(ctx, &msg->msg_##f, sizeof(msg->msg_##f))
3052 R(name);
3053 R(namelen);
3054 R(iov);
3055 R(iovlen);
3056 R(control);
3057 R(controllen);
3058 R(flags);
3059#undef R
3060 if (msg->msg_name && msg->msg_namelen)
3061 COMMON_INTERCEPTOR_READ_RANGE(ctx, msg->msg_name, msg->msg_namelen);
3062 if (msg->msg_iov && msg->msg_iovlen)
3063 COMMON_INTERCEPTOR_READ_RANGE(ctx, msg->msg_iov,
3064 sizeof(*msg->msg_iov) * msg->msg_iovlen);
3065 read_iovec(ctx, msg->msg_iov, msg->msg_iovlen, maxlen);
3066 if (msg->msg_control && msg->msg_controllen)
3067 read_msghdr_control(ctx, msg->msg_control, msg->msg_controllen);
3068}
3069#endif
3070
3071#if SANITIZER_INTERCEPT_SENDMSG
3072INTERCEPTOR(SSIZE_T, sendmsg, int fd, struct __sanitizer_msghdr *msg,
3073 int flags) {
3074 void *ctx;
3075 COMMON_INTERCEPTOR_ENTER(ctx, sendmsg, fd, msg, flags);
3076 if (fd >= 0) {
3077 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
3078 COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
3079 }
3080 SSIZE_T res = REAL(sendmsg)(fd, msg, flags);
3081 if (common_flags()->intercept_send && res >= 0 && msg)
3082 read_msghdr(ctx, msg, res);
3083 return res;
3084}
3085#define INIT_SENDMSG COMMON_INTERCEPT_FUNCTION(sendmsg);
3086#else
3087#define INIT_SENDMSG
3088#endif
3089
3090#if SANITIZER_INTERCEPT_SENDMMSG
3091INTERCEPTOR(int, sendmmsg, int fd, struct __sanitizer_mmsghdr *msgvec,
3092 unsigned vlen, int flags) {
3093 void *ctx;
3094 COMMON_INTERCEPTOR_ENTER(ctx, sendmmsg, fd, msgvec, vlen, flags);
3095 if (fd >= 0) {
3096 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
3097 COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
3098 }
3099 int res = REAL(sendmmsg)(fd, msgvec, vlen, flags);
3100 if (res >= 0 && msgvec) {
3101 for (int i = 0; i < res; ++i) {
3102 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &msgvec[i].msg_len,
3103 sizeof(msgvec[i].msg_len));
3104 if (common_flags()->intercept_send)
3105 read_msghdr(ctx, &msgvec[i].msg_hdr, msgvec[i].msg_len);
3106 }
3107 }
3108 return res;
3109}
3110#define INIT_SENDMMSG COMMON_INTERCEPT_FUNCTION(sendmmsg);
3111#else
3112#define INIT_SENDMMSG
3113#endif
3114
3115#if SANITIZER_INTERCEPT_SYSMSG
3116INTERCEPTOR(int, msgsnd, int msqid, const void *msgp, SIZE_T msgsz,
3117 int msgflg) {
3118 void *ctx;
3119 COMMON_INTERCEPTOR_ENTER(ctx, msgsnd, msqid, msgp, msgsz, msgflg);
3120 if (msgp)
3121 COMMON_INTERCEPTOR_READ_RANGE(ctx, msgp, sizeof(long) + msgsz);
3122 int res = REAL(msgsnd)(msqid, msgp, msgsz, msgflg);
3123 return res;
3124}
3125
3126INTERCEPTOR(SSIZE_T, msgrcv, int msqid, void *msgp, SIZE_T msgsz,
3127 long msgtyp, int msgflg) {
3128 void *ctx;
3129 COMMON_INTERCEPTOR_ENTER(ctx, msgrcv, msqid, msgp, msgsz, msgtyp, msgflg);
3130 SSIZE_T len = REAL(msgrcv)(msqid, msgp, msgsz, msgtyp, msgflg);
3131 if (len != -1)
3132 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msgp, sizeof(long) + len);
3133 return len;
3134}
3135
3136#define INIT_SYSMSG \
3137 COMMON_INTERCEPT_FUNCTION(msgsnd); \
3138 COMMON_INTERCEPT_FUNCTION(msgrcv);
3139#else
3140#define INIT_SYSMSG
3141#endif
3142
3143#if SANITIZER_INTERCEPT_GETPEERNAME
3144INTERCEPTOR(int, getpeername, int sockfd, void *addr, unsigned *addrlen) {
3145 void *ctx;
3146 COMMON_INTERCEPTOR_ENTER(ctx, getpeername, sockfd, addr, addrlen);
3147 unsigned addr_sz;
3148 if (addrlen) addr_sz = *addrlen;
3149 // FIXME: under ASan the call below may write to freed memory and corrupt
3150 // its metadata. See
3151 // https://github.com/google/sanitizers/issues/321.
3152 int res = REAL(getpeername)(sockfd, addr, addrlen);
3153 if (!res && addr && addrlen)
3154 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(addr_sz, *addrlen));
3155 return res;
3156}
3157#define INIT_GETPEERNAME COMMON_INTERCEPT_FUNCTION(getpeername);
3158#else
3159#define INIT_GETPEERNAME
3160#endif
3161
3162#if SANITIZER_INTERCEPT_SYSINFO
3163INTERCEPTOR(int, sysinfo, void *info) {
3164 void *ctx;
3165 // FIXME: under ASan the call below may write to freed memory and corrupt
3166 // its metadata. See
3167 // https://github.com/google/sanitizers/issues/321.
3168 COMMON_INTERCEPTOR_ENTER(ctx, sysinfo, info);
3169 int res = REAL(sysinfo)(info);
3170 if (!res && info)
3171 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, struct_sysinfo_sz);
3172 return res;
3173}
3174#define INIT_SYSINFO COMMON_INTERCEPT_FUNCTION(sysinfo);
3175#else
3176#define INIT_SYSINFO
3177#endif
3178
3179#if SANITIZER_INTERCEPT_READDIR
3180INTERCEPTOR(__sanitizer_dirent *, opendir, const char *path) {
3181 void *ctx;
3182 COMMON_INTERCEPTOR_ENTER(ctx, opendir, path);
3183 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
3184 __sanitizer_dirent *res = REAL(opendir)(path);
3185 if (res)
3186 COMMON_INTERCEPTOR_DIR_ACQUIRE(ctx, path);
3187 return res;
3188}
3189
3190INTERCEPTOR(__sanitizer_dirent *, readdir, void *dirp) {
3191 void *ctx;
3192 COMMON_INTERCEPTOR_ENTER(ctx, readdir, dirp);
3193 // FIXME: under ASan the call below may write to freed memory and corrupt
3194 // its metadata. See
3195 // https://github.com/google/sanitizers/issues/321.
3196 __sanitizer_dirent *res = REAL(readdir)(dirp);
3197 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, res->d_reclen);
3198 return res;
3199}
3200
3201INTERCEPTOR(int, readdir_r, void *dirp, __sanitizer_dirent *entry,
3202 __sanitizer_dirent **result) {
3203 void *ctx;
3204 COMMON_INTERCEPTOR_ENTER(ctx, readdir_r, dirp, entry, result);
3205 // FIXME: under ASan the call below may write to freed memory and corrupt
3206 // its metadata. See
3207 // https://github.com/google/sanitizers/issues/321.
3208 int res = REAL(readdir_r)(dirp, entry, result);
3209 if (!res) {
3210 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
3211 if (*result)
3212 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *result, (*result)->d_reclen);
3213 }
3214 return res;
3215}
3216
3217#define INIT_READDIR \
3218 COMMON_INTERCEPT_FUNCTION(opendir); \
3219 COMMON_INTERCEPT_FUNCTION(readdir); \
3220 COMMON_INTERCEPT_FUNCTION(readdir_r);
3221#else
3222#define INIT_READDIR
3223#endif
3224
3225#if SANITIZER_INTERCEPT_READDIR64
3226INTERCEPTOR(__sanitizer_dirent64 *, readdir64, void *dirp) {
3227 void *ctx;
3228 COMMON_INTERCEPTOR_ENTER(ctx, readdir64, dirp);
3229 // FIXME: under ASan the call below may write to freed memory and corrupt
3230 // its metadata. See
3231 // https://github.com/google/sanitizers/issues/321.
3232 __sanitizer_dirent64 *res = REAL(readdir64)(dirp);
3233 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, res->d_reclen);
3234 return res;
3235}
3236
3237INTERCEPTOR(int, readdir64_r, void *dirp, __sanitizer_dirent64 *entry,
3238 __sanitizer_dirent64 **result) {
3239 void *ctx;
3240 COMMON_INTERCEPTOR_ENTER(ctx, readdir64_r, dirp, entry, result);
3241 // FIXME: under ASan the call below may write to freed memory and corrupt
3242 // its metadata. See
3243 // https://github.com/google/sanitizers/issues/321.
3244 int res = REAL(readdir64_r)(dirp, entry, result);
3245 if (!res) {
3246 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
3247 if (*result)
3248 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *result, (*result)->d_reclen);
3249 }
3250 return res;
3251}
3252#define INIT_READDIR64 \
3253 COMMON_INTERCEPT_FUNCTION(readdir64); \
3254 COMMON_INTERCEPT_FUNCTION(readdir64_r);
3255#else
3256#define INIT_READDIR64
3257#endif
3258
3259#if SANITIZER_INTERCEPT_PTRACE
3260INTERCEPTOR(uptr, ptrace, int request, int pid, void *addr, void *data) {
3261 void *ctx;
3262 COMMON_INTERCEPTOR_ENTER(ctx, ptrace, request, pid, addr, data);
3263 __sanitizer_iovec local_iovec;
3264
3265 if (data) {
3266 if (request == ptrace_setregs) {
3267 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_regs_struct_sz);
3268 } else if (request == ptrace_setfpregs) {
3269 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_fpregs_struct_sz);
3270 } else if (request == ptrace_setfpxregs) {
3271 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_fpxregs_struct_sz);
3272 } else if (request == ptrace_setvfpregs) {
3273 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_vfpregs_struct_sz);
3274 } else if (request == ptrace_setsiginfo) {
3275 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, siginfo_t_sz);
3276
3277 // Some kernel might zero the iovec::iov_base in case of invalid
3278 // write access. In this case copy the invalid address for further
3279 // inspection.
3280 } else if (request == ptrace_setregset || request == ptrace_getregset) {
3281 __sanitizer_iovec *iovec = (__sanitizer_iovec*)data;
3282 COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec, sizeof(*iovec));
3283 local_iovec = *iovec;
3284 if (request == ptrace_setregset)
3285 COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec->iov_base, iovec->iov_len);
3286 }
3287 }
3288
3289 // FIXME: under ASan the call below may write to freed memory and corrupt
3290 // its metadata. See
3291 // https://github.com/google/sanitizers/issues/321.
3292 uptr res = REAL(ptrace)(request, pid, addr, data);
3293
3294 if (!res && data) {
3295 // Note that PEEK* requests assign different meaning to the return value.
3296 // This function does not handle them (nor does it need to).
3297 if (request == ptrace_getregs) {
3298 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_regs_struct_sz);
3299 } else if (request == ptrace_getfpregs) {
3300 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_fpregs_struct_sz);
3301 } else if (request == ptrace_getfpxregs) {
3302 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_fpxregs_struct_sz);
3303 } else if (request == ptrace_getvfpregs) {
3304 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_vfpregs_struct_sz);
3305 } else if (request == ptrace_getsiginfo) {
3306 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, siginfo_t_sz);
3307 } else if (request == ptrace_geteventmsg) {
3308 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, sizeof(unsigned long));
3309 } else if (request == ptrace_getregset) {
3310 __sanitizer_iovec *iovec = (__sanitizer_iovec*)data;
3311 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iovec, sizeof(*iovec));
3312 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, local_iovec.iov_base,
3313 local_iovec.iov_len);
3314 }
3315 }
3316 return res;
3317}
3318
3319#define INIT_PTRACE COMMON_INTERCEPT_FUNCTION(ptrace);
3320#else
3321#define INIT_PTRACE
3322#endif
3323
3324#if SANITIZER_INTERCEPT_SETLOCALE
3325static void unpoison_ctype_arrays(void *ctx) {
3326#if SANITIZER_NETBSD
3327 // These arrays contain 256 regular elements in unsigned char range + 1 EOF
3328 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, _ctype_tab_, 257 * sizeof(short));
3329 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, _toupper_tab_, 257 * sizeof(short));
3330 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, _tolower_tab_, 257 * sizeof(short));
3331#endif
3332}
3333
3334INTERCEPTOR(char *, setlocale, int category, char *locale) {
3335 void *ctx;
3336 COMMON_INTERCEPTOR_ENTER(ctx, setlocale, category, locale);
3337 if (locale)
3338 COMMON_INTERCEPTOR_READ_RANGE(ctx, locale, REAL(strlen)(locale) + 1);
3339 char *res = REAL(setlocale)(category, locale);
3340 if (res) {
3341 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
3342 unpoison_ctype_arrays(ctx);
3343 }
3344 return res;
3345}
3346
3347#define INIT_SETLOCALE COMMON_INTERCEPT_FUNCTION(setlocale);
3348#else
3349#define INIT_SETLOCALE
3350#endif
3351
3352#if SANITIZER_INTERCEPT_GETCWD
3353INTERCEPTOR(char *, getcwd, char *buf, SIZE_T size) {
3354 void *ctx;
3355 COMMON_INTERCEPTOR_ENTER(ctx, getcwd, buf, size);
3356 // FIXME: under ASan the call below may write to freed memory and corrupt
3357 // its metadata. See
3358 // https://github.com/google/sanitizers/issues/321.
3359 char *res = REAL(getcwd)(buf, size);
3360 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
3361 return res;
3362}
3363#define INIT_GETCWD COMMON_INTERCEPT_FUNCTION(getcwd);
3364#else
3365#define INIT_GETCWD
3366#endif
3367
3368#if SANITIZER_INTERCEPT_GET_CURRENT_DIR_NAME
3369INTERCEPTOR(char *, get_current_dir_name, int fake) {
3370 void *ctx;
3371 COMMON_INTERCEPTOR_ENTER(ctx, get_current_dir_name, fake);
3372 // FIXME: under ASan the call below may write to freed memory and corrupt
3373 // its metadata. See
3374 // https://github.com/google/sanitizers/issues/321.
3375 char *res = REAL(get_current_dir_name)(fake);
3376 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
3377 return res;
3378}
3379
3380#define INIT_GET_CURRENT_DIR_NAME \
3381 COMMON_INTERCEPT_FUNCTION(get_current_dir_name);
3382#else
3383#define INIT_GET_CURRENT_DIR_NAME
3384#endif
3385
3386UNUSED static inline void FixRealStrtolEndptr(const char *nptr, char **endptr) {
3387 CHECK(endptr);
3388 if (nptr == *endptr) {
3389 // No digits were found at strtol call, we need to find out the last
3390 // symbol accessed by strtoll on our own.
3391 // We get this symbol by skipping leading blanks and optional +/- sign.
3392 while (IsSpace(*nptr)) nptr++;
3393 if (*nptr == '+' || *nptr == '-') nptr++;
3394 *endptr = const_cast<char *>(nptr);
3395 }
3396 CHECK(*endptr >= nptr);
3397}
3398
3399UNUSED static inline void StrtolFixAndCheck(void *ctx, const char *nptr,
3400 char **endptr, char *real_endptr, int base) {
3401 if (endptr) {
3402 *endptr = real_endptr;
3403 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, endptr, sizeof(*endptr));
3404 }
3405 // If base has unsupported value, strtol can exit with EINVAL
3406 // without reading any characters. So do additional checks only
3407 // if base is valid.
3408 bool is_valid_base = (base == 0) || (2 <= base && base <= 36);
3409 if (is_valid_base) {
3410 FixRealStrtolEndptr(nptr, &real_endptr);
3411 }
3412 COMMON_INTERCEPTOR_READ_STRING(ctx, nptr, is_valid_base ?
3413 (real_endptr - nptr) + 1 : 0);
3414}
3415
3416
3417#if SANITIZER_INTERCEPT_STRTOIMAX
3418INTERCEPTOR(INTMAX_T, strtoimax, const char *nptr, char **endptr, int base) {
3419 void *ctx;
3420 COMMON_INTERCEPTOR_ENTER(ctx, strtoimax, nptr, endptr, base);
3421 // FIXME: under ASan the call below may write to freed memory and corrupt
3422 // its metadata. See
3423 // https://github.com/google/sanitizers/issues/321.
3424 char *real_endptr;
3425 INTMAX_T res = REAL(strtoimax)(nptr, &real_endptr, base);
3426 StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base);
3427 return res;
3428}
3429
3430INTERCEPTOR(UINTMAX_T, strtoumax, const char *nptr, char **endptr, int base) {
3431 void *ctx;
3432 COMMON_INTERCEPTOR_ENTER(ctx, strtoumax, nptr, endptr, base);
3433 // FIXME: under ASan the call below may write to freed memory and corrupt
3434 // its metadata. See
3435 // https://github.com/google/sanitizers/issues/321.
3436 char *real_endptr;
3437 UINTMAX_T res = REAL(strtoumax)(nptr, &real_endptr, base);
3438 StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base);
3439 return res;
3440}
3441
3442#define INIT_STRTOIMAX \
3443 COMMON_INTERCEPT_FUNCTION(strtoimax); \
3444 COMMON_INTERCEPT_FUNCTION(strtoumax);
3445#else
3446#define INIT_STRTOIMAX
3447#endif
3448
3449#if SANITIZER_INTERCEPT_MBSTOWCS
3450INTERCEPTOR(SIZE_T, mbstowcs, wchar_t *dest, const char *src, SIZE_T len) {
3451 void *ctx;
3452 COMMON_INTERCEPTOR_ENTER(ctx, mbstowcs, dest, src, len);
3453 // FIXME: under ASan the call below may write to freed memory and corrupt
3454 // its metadata. See
3455 // https://github.com/google/sanitizers/issues/321.
3456 SIZE_T res = REAL(mbstowcs)(dest, src, len);
3457 if (res != (SIZE_T) - 1 && dest) {
3458 SIZE_T write_cnt = res + (res < len);
3459 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t));
3460 }
3461 return res;
3462}
3463
3464INTERCEPTOR(SIZE_T, mbsrtowcs, wchar_t *dest, const char **src, SIZE_T len,
3465 void *ps) {
3466 void *ctx;
3467 COMMON_INTERCEPTOR_ENTER(ctx, mbsrtowcs, dest, src, len, ps);
3468 if (src) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src));
3469 if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz);
3470 // FIXME: under ASan the call below may write to freed memory and corrupt
3471 // its metadata. See
3472 // https://github.com/google/sanitizers/issues/321.
3473 SIZE_T res = REAL(mbsrtowcs)(dest, src, len, ps);
3474 if (res != (SIZE_T)(-1) && dest && src) {
3475 // This function, and several others, may or may not write the terminating
3476 // \0 character. They write it iff they clear *src.
3477 SIZE_T write_cnt = res + !*src;
3478 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t));
3479 }
3480 return res;
3481}
3482
3483#define INIT_MBSTOWCS \
3484 COMMON_INTERCEPT_FUNCTION(mbstowcs); \
3485 COMMON_INTERCEPT_FUNCTION(mbsrtowcs);
3486#else
3487#define INIT_MBSTOWCS
3488#endif
3489
3490#if SANITIZER_INTERCEPT_MBSNRTOWCS
3491INTERCEPTOR(SIZE_T, mbsnrtowcs, wchar_t *dest, const char **src, SIZE_T nms,
3492 SIZE_T len, void *ps) {
3493 void *ctx;
3494 COMMON_INTERCEPTOR_ENTER(ctx, mbsnrtowcs, dest, src, nms, len, ps);
3495 if (src) {
3496 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src));
3497 if (nms) COMMON_INTERCEPTOR_READ_RANGE(ctx, *src, nms);
3498 }
3499 if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz);
3500 // FIXME: under ASan the call below may write to freed memory and corrupt
3501 // its metadata. See
3502 // https://github.com/google/sanitizers/issues/321.
3503 SIZE_T res = REAL(mbsnrtowcs)(dest, src, nms, len, ps);
3504 if (res != (SIZE_T)(-1) && dest && src) {
3505 SIZE_T write_cnt = res + !*src;
3506 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t));
3507 }
3508 return res;
3509}
3510
3511#define INIT_MBSNRTOWCS COMMON_INTERCEPT_FUNCTION(mbsnrtowcs);
3512#else
3513#define INIT_MBSNRTOWCS
3514#endif
3515
3516#if SANITIZER_INTERCEPT_WCSTOMBS
3517INTERCEPTOR(SIZE_T, wcstombs, char *dest, const wchar_t *src, SIZE_T len) {
3518 void *ctx;
3519 COMMON_INTERCEPTOR_ENTER(ctx, wcstombs, dest, src, len);
3520 // FIXME: under ASan the call below may write to freed memory and corrupt
3521 // its metadata. See
3522 // https://github.com/google/sanitizers/issues/321.
3523 SIZE_T res = REAL(wcstombs)(dest, src, len);
3524 if (res != (SIZE_T) - 1 && dest) {
3525 SIZE_T write_cnt = res + (res < len);
3526 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt);
3527 }
3528 return res;
3529}
3530
3531INTERCEPTOR(SIZE_T, wcsrtombs, char *dest, const wchar_t **src, SIZE_T len,
3532 void *ps) {
3533 void *ctx;
3534 COMMON_INTERCEPTOR_ENTER(ctx, wcsrtombs, dest, src, len, ps);
3535 if (src) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src));
3536 if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz);
3537 // FIXME: under ASan the call below may write to freed memory and corrupt
3538 // its metadata. See
3539 // https://github.com/google/sanitizers/issues/321.
3540 SIZE_T res = REAL(wcsrtombs)(dest, src, len, ps);
3541 if (res != (SIZE_T) - 1 && dest && src) {
3542 SIZE_T write_cnt = res + !*src;
3543 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt);
3544 }
3545 return res;
3546}
3547
3548#define INIT_WCSTOMBS \
3549 COMMON_INTERCEPT_FUNCTION(wcstombs); \
3550 COMMON_INTERCEPT_FUNCTION(wcsrtombs);
3551#else
3552#define INIT_WCSTOMBS
3553#endif
3554
3555#if SANITIZER_INTERCEPT_WCSNRTOMBS
3556INTERCEPTOR(SIZE_T, wcsnrtombs, char *dest, const wchar_t **src, SIZE_T nms,
3557 SIZE_T len, void *ps) {
3558 void *ctx;
3559 COMMON_INTERCEPTOR_ENTER(ctx, wcsnrtombs, dest, src, nms, len, ps);
3560 if (src) {
3561 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src));
3562 if (nms) COMMON_INTERCEPTOR_READ_RANGE(ctx, *src, nms);
3563 }
3564 if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz);
3565 // FIXME: under ASan the call below may write to freed memory and corrupt
3566 // its metadata. See
3567 // https://github.com/google/sanitizers/issues/321.
3568 SIZE_T res = REAL(wcsnrtombs)(dest, src, nms, len, ps);
3569 if (res != ((SIZE_T)-1) && dest && src) {
3570 SIZE_T write_cnt = res + !*src;
3571 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt);
3572 }
3573 return res;
3574}
3575
3576#define INIT_WCSNRTOMBS COMMON_INTERCEPT_FUNCTION(wcsnrtombs);
3577#else
3578#define INIT_WCSNRTOMBS
3579#endif
3580
3581
3582#if SANITIZER_INTERCEPT_WCRTOMB
3583INTERCEPTOR(SIZE_T, wcrtomb, char *dest, wchar_t src, void *ps) {
3584 void *ctx;
3585 COMMON_INTERCEPTOR_ENTER(ctx, wcrtomb, dest, src, ps);
3586 if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz);
3587
3588 if (!dest)
3589 return REAL(wcrtomb)(dest, src, ps);
3590
3591 char local_dest[32];
3592 SIZE_T res = REAL(wcrtomb)(local_dest, src, ps);
3593 if (res != ((SIZE_T)-1)) {
3594 CHECK_LE(res, sizeof(local_dest));
3595 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, res);
3596 REAL(memcpy)(dest, local_dest, res);
3597 }
3598 return res;
3599}
3600
3601#define INIT_WCRTOMB COMMON_INTERCEPT_FUNCTION(wcrtomb);
3602#else
3603#define INIT_WCRTOMB
3604#endif
3605
3606#if SANITIZER_INTERCEPT_WCTOMB
3607INTERCEPTOR(int, wctomb, char *dest, wchar_t src) {
3608 void *ctx;
3609 COMMON_INTERCEPTOR_ENTER(ctx, wctomb, dest, src);
3610 if (!dest)
3611 return REAL(wctomb)(dest, src);
3612
3613 char local_dest[32];
3614 int res = REAL(wctomb)(local_dest, src);
3615 if (res != -1) {
3616 CHECK_LE(res, sizeof(local_dest));
3617 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, res);
3618 REAL(memcpy)(dest, local_dest, res);
3619 }
3620 return res;
3621}
3622
3623#define INIT_WCTOMB COMMON_INTERCEPT_FUNCTION(wctomb);
3624#else
3625#define INIT_WCTOMB
3626#endif
3627
3628#if SANITIZER_INTERCEPT_TCGETATTR
3629INTERCEPTOR(int, tcgetattr, int fd, void *termios_p) {
3630 void *ctx;
3631 COMMON_INTERCEPTOR_ENTER(ctx, tcgetattr, fd, termios_p);
3632 // FIXME: under ASan the call below may write to freed memory and corrupt
3633 // its metadata. See
3634 // https://github.com/google/sanitizers/issues/321.
3635 int res = REAL(tcgetattr)(fd, termios_p);
3636 if (!res && termios_p)
3637 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, termios_p, struct_termios_sz);
3638 return res;
3639}
3640
3641#define INIT_TCGETATTR COMMON_INTERCEPT_FUNCTION(tcgetattr);
3642#else
3643#define INIT_TCGETATTR
3644#endif
3645
3646#if SANITIZER_INTERCEPT_REALPATH
3647INTERCEPTOR(char *, realpath, const char *path, char *resolved_path) {
3648 void *ctx;
3649 COMMON_INTERCEPTOR_ENTER(ctx, realpath, path, resolved_path);
3650 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
3651
3652 // Workaround a bug in glibc where dlsym(RTLD_NEXT, ...) returns the oldest
3653 // version of a versioned symbol. For realpath(), this gives us something
3654 // (called __old_realpath) that does not handle NULL in the second argument.
3655 // Handle it as part of the interceptor.
3656 char *allocated_path = nullptr;
3657 if (!resolved_path)
3658 allocated_path = resolved_path = (char *)WRAP(malloc)(path_max + 1);
3659
3660 char *res = REAL(realpath)(path, resolved_path);
3661 if (allocated_path && !res) WRAP(free)(allocated_path);
3662 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
3663 return res;
3664}
3665#define INIT_REALPATH COMMON_INTERCEPT_FUNCTION(realpath);
3666#else
3667#define INIT_REALPATH
3668#endif
3669
3670#if SANITIZER_INTERCEPT_CANONICALIZE_FILE_NAME
3671INTERCEPTOR(char *, canonicalize_file_name, const char *path) {
3672 void *ctx;
3673 COMMON_INTERCEPTOR_ENTER(ctx, canonicalize_file_name, path);
3674 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
3675 char *res = REAL(canonicalize_file_name)(path);
3676 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
3677 return res;
3678}
3679#define INIT_CANONICALIZE_FILE_NAME \
3680 COMMON_INTERCEPT_FUNCTION(canonicalize_file_name);
3681#else
3682#define INIT_CANONICALIZE_FILE_NAME
3683#endif
3684
3685#if SANITIZER_INTERCEPT_CONFSTR
3686INTERCEPTOR(SIZE_T, confstr, int name, char *buf, SIZE_T len) {
3687 void *ctx;
3688 COMMON_INTERCEPTOR_ENTER(ctx, confstr, name, buf, len);
3689 // FIXME: under ASan the call below may write to freed memory and corrupt
3690 // its metadata. See
3691 // https://github.com/google/sanitizers/issues/321.
3692 SIZE_T res = REAL(confstr)(name, buf, len);
3693 if (buf && res)
3694 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, res < len ? res : len);
3695 return res;
3696}
3697#define INIT_CONFSTR COMMON_INTERCEPT_FUNCTION(confstr);
3698#else
3699#define INIT_CONFSTR
3700#endif
3701
3702#if SANITIZER_INTERCEPT_SCHED_GETAFFINITY
3703INTERCEPTOR(int, sched_getaffinity, int pid, SIZE_T cpusetsize, void *mask) {
3704 void *ctx;
3705 COMMON_INTERCEPTOR_ENTER(ctx, sched_getaffinity, pid, cpusetsize, mask);
3706 // FIXME: under ASan the call below may write to freed memory and corrupt
3707 // its metadata. See
3708 // https://github.com/google/sanitizers/issues/321.
3709 int res = REAL(sched_getaffinity)(pid, cpusetsize, mask);
3710 if (mask && !res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mask, cpusetsize);
3711 return res;
3712}
3713#define INIT_SCHED_GETAFFINITY COMMON_INTERCEPT_FUNCTION(sched_getaffinity);
3714#else
3715#define INIT_SCHED_GETAFFINITY
3716#endif
3717
3718#if SANITIZER_INTERCEPT_SCHED_GETPARAM
3719INTERCEPTOR(int, sched_getparam, int pid, void *param) {
3720 void *ctx;
3721 COMMON_INTERCEPTOR_ENTER(ctx, sched_getparam, pid, param);
3722 int res = REAL(sched_getparam)(pid, param);
3723 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, param, struct_sched_param_sz);
3724 return res;
3725}
3726#define INIT_SCHED_GETPARAM COMMON_INTERCEPT_FUNCTION(sched_getparam);
3727#else
3728#define INIT_SCHED_GETPARAM
3729#endif
3730
3731#if SANITIZER_INTERCEPT_STRERROR
3732INTERCEPTOR(char *, strerror, int errnum) {
3733 void *ctx;
3734 COMMON_INTERCEPTOR_ENTER(ctx, strerror, errnum);
3735 COMMON_INTERCEPTOR_STRERROR();
3736 char *res = REAL(strerror)(errnum);
3737 if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
3738 return res;
3739}
3740#define INIT_STRERROR COMMON_INTERCEPT_FUNCTION(strerror);
3741#else
3742#define INIT_STRERROR
3743#endif
3744
3745#if SANITIZER_INTERCEPT_STRERROR_R
3746// There are 2 versions of strerror_r:
3747// * POSIX version returns 0 on success, negative error code on failure,
3748// writes message to buf.
3749// * GNU version returns message pointer, which points to either buf or some
3750// static storage.
3751#if ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !_GNU_SOURCE) || \
3752 SANITIZER_MAC || SANITIZER_ANDROID || SANITIZER_NETBSD || \
3753 SANITIZER_FREEBSD
3754// POSIX version. Spec is not clear on whether buf is NULL-terminated.
3755// At least on OSX, buf contents are valid even when the call fails.
3756INTERCEPTOR(int, strerror_r, int errnum, char *buf, SIZE_T buflen) {
3757 void *ctx;
3758 COMMON_INTERCEPTOR_ENTER(ctx, strerror_r, errnum, buf, buflen);
3759 // FIXME: under ASan the call below may write to freed memory and corrupt
3760 // its metadata. See
3761 // https://github.com/google/sanitizers/issues/321.
3762 int res = REAL(strerror_r)(errnum, buf, buflen);
3763
3764 SIZE_T sz = internal_strnlen(buf, buflen);
3765 if (sz < buflen) ++sz;
3766 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sz);
3767 return res;
3768}
3769#else
3770// GNU version.
3771INTERCEPTOR(char *, strerror_r, int errnum, char *buf, SIZE_T buflen) {
3772 void *ctx;
3773 COMMON_INTERCEPTOR_ENTER(ctx, strerror_r, errnum, buf, buflen);
3774 // FIXME: under ASan the call below may write to freed memory and corrupt
3775 // its metadata. See
3776 // https://github.com/google/sanitizers/issues/321.
3777 char *res = REAL(strerror_r)(errnum, buf, buflen);
3778 if (res == buf)
3779 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
3780 else
3781 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
3782 return res;
3783}
3784#endif //(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !_GNU_SOURCE ||
3785 //SANITIZER_MAC
3786#define INIT_STRERROR_R COMMON_INTERCEPT_FUNCTION(strerror_r);
3787#else
3788#define INIT_STRERROR_R
3789#endif
3790
3791#if SANITIZER_INTERCEPT_XPG_STRERROR_R
3792INTERCEPTOR(int, __xpg_strerror_r, int errnum, char *buf, SIZE_T buflen) {
3793 void *ctx;
3794 COMMON_INTERCEPTOR_ENTER(ctx, __xpg_strerror_r, errnum, buf, buflen);
3795 // FIXME: under ASan the call below may write to freed memory and corrupt
3796 // its metadata. See
3797 // https://github.com/google/sanitizers/issues/321.
3798 int res = REAL(__xpg_strerror_r)(errnum, buf, buflen);
3799 // This version always returns a null-terminated string.
3800 if (buf && buflen)
3801 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, REAL(strlen)(buf) + 1);
3802 return res;
3803}
3804#define INIT_XPG_STRERROR_R COMMON_INTERCEPT_FUNCTION(__xpg_strerror_r);
3805#else
3806#define INIT_XPG_STRERROR_R
3807#endif
3808
3809#if SANITIZER_INTERCEPT_SCANDIR
3810typedef int (*scandir_filter_f)(const struct __sanitizer_dirent *);
3811typedef int (*scandir_compar_f)(const struct __sanitizer_dirent **,
3812 const struct __sanitizer_dirent **);
3813
3814static THREADLOCAL scandir_filter_f scandir_filter;
3815static THREADLOCAL scandir_compar_f scandir_compar;
3816
3817static int wrapped_scandir_filter(const struct __sanitizer_dirent *dir) {
3818 COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
3819 COMMON_INTERCEPTOR_INITIALIZE_RANGE(dir, dir->d_reclen);
3820 return scandir_filter(dir);
3821}
3822
3823static int wrapped_scandir_compar(const struct __sanitizer_dirent **a,
3824 const struct __sanitizer_dirent **b) {
3825 COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
3826 COMMON_INTERCEPTOR_INITIALIZE_RANGE(a, sizeof(*a));
3827 COMMON_INTERCEPTOR_INITIALIZE_RANGE(*a, (*a)->d_reclen);
3828 COMMON_INTERCEPTOR_INITIALIZE_RANGE(b, sizeof(*b));
3829 COMMON_INTERCEPTOR_INITIALIZE_RANGE(*b, (*b)->d_reclen);
3830 return scandir_compar(a, b);
3831}
3832
3833INTERCEPTOR(int, scandir, char *dirp, __sanitizer_dirent ***namelist,
3834 scandir_filter_f filter, scandir_compar_f compar) {
3835 void *ctx;
3836 COMMON_INTERCEPTOR_ENTER(ctx, scandir, dirp, namelist, filter, compar);
3837 if (dirp) COMMON_INTERCEPTOR_READ_RANGE(ctx, dirp, REAL(strlen)(dirp) + 1);
3838 scandir_filter = filter;
3839 scandir_compar = compar;
3840 // FIXME: under ASan the call below may write to freed memory and corrupt
3841 // its metadata. See
3842 // https://github.com/google/sanitizers/issues/321.
3843 int res = REAL(scandir)(dirp, namelist,
3844 filter ? wrapped_scandir_filter : nullptr,
3845 compar ? wrapped_scandir_compar : nullptr);
3846 scandir_filter = nullptr;
3847 scandir_compar = nullptr;
3848 if (namelist && res > 0) {
3849 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelist, sizeof(*namelist));
3850 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *namelist, sizeof(**namelist) * res);
3851 for (int i = 0; i < res; ++i)
3852 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, (*namelist)[i],
3853 (*namelist)[i]->d_reclen);
3854 }
3855 return res;
3856}
3857#define INIT_SCANDIR COMMON_INTERCEPT_FUNCTION(scandir);
3858#else
3859#define INIT_SCANDIR
3860#endif
3861
3862#if SANITIZER_INTERCEPT_SCANDIR64
3863typedef int (*scandir64_filter_f)(const struct __sanitizer_dirent64 *);
3864typedef int (*scandir64_compar_f)(const struct __sanitizer_dirent64 **,
3865 const struct __sanitizer_dirent64 **);
3866
3867static THREADLOCAL scandir64_filter_f scandir64_filter;
3868static THREADLOCAL scandir64_compar_f scandir64_compar;
3869
3870static int wrapped_scandir64_filter(const struct __sanitizer_dirent64 *dir) {
3871 COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
3872 COMMON_INTERCEPTOR_INITIALIZE_RANGE(dir, dir->d_reclen);
3873 return scandir64_filter(dir);
3874}
3875
3876static int wrapped_scandir64_compar(const struct __sanitizer_dirent64 **a,
3877 const struct __sanitizer_dirent64 **b) {
3878 COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
3879 COMMON_INTERCEPTOR_INITIALIZE_RANGE(a, sizeof(*a));
3880 COMMON_INTERCEPTOR_INITIALIZE_RANGE(*a, (*a)->d_reclen);
3881 COMMON_INTERCEPTOR_INITIALIZE_RANGE(b, sizeof(*b));
3882 COMMON_INTERCEPTOR_INITIALIZE_RANGE(*b, (*b)->d_reclen);
3883 return scandir64_compar(a, b);
3884}
3885
3886INTERCEPTOR(int, scandir64, char *dirp, __sanitizer_dirent64 ***namelist,
3887 scandir64_filter_f filter, scandir64_compar_f compar) {
3888 void *ctx;
3889 COMMON_INTERCEPTOR_ENTER(ctx, scandir64, dirp, namelist, filter, compar);
3890 if (dirp) COMMON_INTERCEPTOR_READ_RANGE(ctx, dirp, REAL(strlen)(dirp) + 1);
3891 scandir64_filter = filter;
3892 scandir64_compar = compar;
3893 // FIXME: under ASan the call below may write to freed memory and corrupt
3894 // its metadata. See
3895 // https://github.com/google/sanitizers/issues/321.
3896 int res =
3897 REAL(scandir64)(dirp, namelist,
3898 filter ? wrapped_scandir64_filter : nullptr,
3899 compar ? wrapped_scandir64_compar : nullptr);
3900 scandir64_filter = nullptr;
3901 scandir64_compar = nullptr;
3902 if (namelist && res > 0) {
3903 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelist, sizeof(*namelist));
3904 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *namelist, sizeof(**namelist) * res);
3905 for (int i = 0; i < res; ++i)
3906 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, (*namelist)[i],
3907 (*namelist)[i]->d_reclen);
3908 }
3909 return res;
3910}
3911#define INIT_SCANDIR64 COMMON_INTERCEPT_FUNCTION(scandir64);
3912#else
3913#define INIT_SCANDIR64
3914#endif
3915
3916#if SANITIZER_INTERCEPT_GETGROUPS
3917INTERCEPTOR(int, getgroups, int size, u32 *lst) {
3918 void *ctx;
3919 COMMON_INTERCEPTOR_ENTER(ctx, getgroups, size, lst);
3920 // FIXME: under ASan the call below may write to freed memory and corrupt
3921 // its metadata. See
3922 // https://github.com/google/sanitizers/issues/321.
3923 int res = REAL(getgroups)(size, lst);
3924 if (res >= 0 && lst && size > 0)
3925 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lst, res * sizeof(*lst));
3926 return res;
3927}
3928#define INIT_GETGROUPS COMMON_INTERCEPT_FUNCTION(getgroups);
3929#else
3930#define INIT_GETGROUPS
3931#endif
3932
3933#if SANITIZER_INTERCEPT_POLL
3934static void read_pollfd(void *ctx, __sanitizer_pollfd *fds,
3935 __sanitizer_nfds_t nfds) {
3936 for (unsigned i = 0; i < nfds; ++i) {
3937 COMMON_INTERCEPTOR_READ_RANGE(ctx, &fds[i].fd, sizeof(fds[i].fd));
3938 COMMON_INTERCEPTOR_READ_RANGE(ctx, &fds[i].events, sizeof(fds[i].events));
3939 }
3940}
3941
3942static void write_pollfd(void *ctx, __sanitizer_pollfd *fds,
3943 __sanitizer_nfds_t nfds) {
3944 for (unsigned i = 0; i < nfds; ++i)
3945 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &fds[i].revents,
3946 sizeof(fds[i].revents));
3947}
3948
3949INTERCEPTOR(int, poll, __sanitizer_pollfd *fds, __sanitizer_nfds_t nfds,
3950 int timeout) {
3951 void *ctx;
3952 COMMON_INTERCEPTOR_ENTER(ctx, poll, fds, nfds, timeout);
3953 if (fds && nfds) read_pollfd(ctx, fds, nfds);
3954 int res = COMMON_INTERCEPTOR_BLOCK_REAL(poll)(fds, nfds, timeout);
3955 if (fds && nfds) write_pollfd(ctx, fds, nfds);
3956 return res;
3957}
3958#define INIT_POLL COMMON_INTERCEPT_FUNCTION(poll);
3959#else
3960#define INIT_POLL
3961#endif
3962
3963#if SANITIZER_INTERCEPT_PPOLL
3964INTERCEPTOR(int, ppoll, __sanitizer_pollfd *fds, __sanitizer_nfds_t nfds,
3965 void *timeout_ts, __sanitizer_sigset_t *sigmask) {
3966 void *ctx;
3967 COMMON_INTERCEPTOR_ENTER(ctx, ppoll, fds, nfds, timeout_ts, sigmask);
3968 if (fds && nfds) read_pollfd(ctx, fds, nfds);
3969 if (timeout_ts)
3970 COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout_ts, struct_timespec_sz);
3971 if (sigmask) COMMON_INTERCEPTOR_READ_RANGE(ctx, sigmask, sizeof(*sigmask));
3972 int res =
3973 COMMON_INTERCEPTOR_BLOCK_REAL(ppoll)(fds, nfds, timeout_ts, sigmask);
3974 if (fds && nfds) write_pollfd(ctx, fds, nfds);
3975 return res;
3976}
3977#define INIT_PPOLL COMMON_INTERCEPT_FUNCTION(ppoll);
3978#else
3979#define INIT_PPOLL
3980#endif
3981
3982#if SANITIZER_INTERCEPT_WORDEXP
3983INTERCEPTOR(int, wordexp, char *s, __sanitizer_wordexp_t *p, int flags) {
3984 void *ctx;
3985 COMMON_INTERCEPTOR_ENTER(ctx, wordexp, s, p, flags);
3986 if (s) COMMON_INTERCEPTOR_READ_RANGE(ctx, s, REAL(strlen)(s) + 1);
3987 // FIXME: under ASan the call below may write to freed memory and corrupt
3988 // its metadata. See
3989 // https://github.com/google/sanitizers/issues/321.
3990 int res = REAL(wordexp)(s, p, flags);
3991 if (!res && p) {
3992 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
3993 if (p->we_wordc)
3994 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->we_wordv,
3995 sizeof(*p->we_wordv) * p->we_wordc);
3996 for (uptr i = 0; i < p->we_wordc; ++i) {
3997 char *w = p->we_wordv[i];
3998 if (w) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, w, REAL(strlen)(w) + 1);
3999 }
4000 }
4001 return res;
4002}
4003#define INIT_WORDEXP COMMON_INTERCEPT_FUNCTION(wordexp);
4004#else
4005#define INIT_WORDEXP
4006#endif
4007
4008#if SANITIZER_INTERCEPT_SIGWAIT
4009INTERCEPTOR(int, sigwait, __sanitizer_sigset_t *set, int *sig) {
4010 void *ctx;
4011 COMMON_INTERCEPTOR_ENTER(ctx, sigwait, set, sig);
4012 if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set));
4013 // FIXME: under ASan the call below may write to freed memory and corrupt
4014 // its metadata. See
4015 // https://github.com/google/sanitizers/issues/321.
4016 int res = REAL(sigwait)(set, sig);
4017 if (!res && sig) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sig, sizeof(*sig));
4018 return res;
4019}
4020#define INIT_SIGWAIT COMMON_INTERCEPT_FUNCTION(sigwait);
4021#else
4022#define INIT_SIGWAIT
4023#endif
4024
4025#if SANITIZER_INTERCEPT_SIGWAITINFO
4026INTERCEPTOR(int, sigwaitinfo, __sanitizer_sigset_t *set, void *info) {
4027 void *ctx;
4028 COMMON_INTERCEPTOR_ENTER(ctx, sigwaitinfo, set, info);
4029 if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set));
4030 // FIXME: under ASan the call below may write to freed memory and corrupt
4031 // its metadata. See
4032 // https://github.com/google/sanitizers/issues/321.
4033 int res = REAL(sigwaitinfo)(set, info);
4034 if (res > 0 && info) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, siginfo_t_sz);
4035 return res;
4036}
4037#define INIT_SIGWAITINFO COMMON_INTERCEPT_FUNCTION(sigwaitinfo);
4038#else
4039#define INIT_SIGWAITINFO
4040#endif
4041
4042#if SANITIZER_INTERCEPT_SIGTIMEDWAIT
4043INTERCEPTOR(int, sigtimedwait, __sanitizer_sigset_t *set, void *info,
4044 void *timeout) {
4045 void *ctx;
4046 COMMON_INTERCEPTOR_ENTER(ctx, sigtimedwait, set, info, timeout);
4047 if (timeout) COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout, struct_timespec_sz);
4048 if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set));
4049 // FIXME: under ASan the call below may write to freed memory and corrupt
4050 // its metadata. See
4051 // https://github.com/google/sanitizers/issues/321.
4052 int res = REAL(sigtimedwait)(set, info, timeout);
4053 if (res > 0 && info) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, siginfo_t_sz);
4054 return res;
4055}
4056#define INIT_SIGTIMEDWAIT COMMON_INTERCEPT_FUNCTION(sigtimedwait);
4057#else
4058#define INIT_SIGTIMEDWAIT
4059#endif
4060
4061#if SANITIZER_INTERCEPT_SIGSETOPS
4062INTERCEPTOR(int, sigemptyset, __sanitizer_sigset_t *set) {
4063 void *ctx;
4064 COMMON_INTERCEPTOR_ENTER(ctx, sigemptyset, set);
4065 // FIXME: under ASan the call below may write to freed memory and corrupt
4066 // its metadata. See
4067 // https://github.com/google/sanitizers/issues/321.
4068 int res = REAL(sigemptyset)(set);
4069 if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set));
4070 return res;
4071}
4072
4073INTERCEPTOR(int, sigfillset, __sanitizer_sigset_t *set) {
4074 void *ctx;
4075 COMMON_INTERCEPTOR_ENTER(ctx, sigfillset, set);
4076 // FIXME: under ASan the call below may write to freed memory and corrupt
4077 // its metadata. See
4078 // https://github.com/google/sanitizers/issues/321.
4079 int res = REAL(sigfillset)(set);
4080 if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set));
4081 return res;
4082}
4083#define INIT_SIGSETOPS \
4084 COMMON_INTERCEPT_FUNCTION(sigemptyset); \
4085 COMMON_INTERCEPT_FUNCTION(sigfillset);
4086#else
4087#define INIT_SIGSETOPS
4088#endif
4089
4090#if SANITIZER_INTERCEPT_SIGSET_LOGICOPS
4091INTERCEPTOR(int, sigandset, __sanitizer_sigset_t *dst,
4092 __sanitizer_sigset_t *src1, __sanitizer_sigset_t *src2) {
4093 void *ctx;
4094 COMMON_INTERCEPTOR_ENTER(ctx, sigandset, dst, src1, src2);
4095 if (src1)
4096 COMMON_INTERCEPTOR_READ_RANGE(ctx, src1, sizeof(*src1));
4097 if (src2)
4098 COMMON_INTERCEPTOR_READ_RANGE(ctx, src2, sizeof(*src2));
4099 int res = REAL(sigandset)(dst, src1, src2);
4100 if (!res && dst)
4101 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sizeof(*dst));
4102 return res;
4103}
4104
4105INTERCEPTOR(int, sigorset, __sanitizer_sigset_t *dst,
4106 __sanitizer_sigset_t *src1, __sanitizer_sigset_t *src2) {
4107 void *ctx;
4108 COMMON_INTERCEPTOR_ENTER(ctx, sigorset, dst, src1, src2);
4109 if (src1)
4110 COMMON_INTERCEPTOR_READ_RANGE(ctx, src1, sizeof(*src1));
4111 if (src2)
4112 COMMON_INTERCEPTOR_READ_RANGE(ctx, src2, sizeof(*src2));
4113 int res = REAL(sigorset)(dst, src1, src2);
4114 if (!res && dst)
4115 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sizeof(*dst));
4116 return res;
4117}
4118#define INIT_SIGSET_LOGICOPS \
4119 COMMON_INTERCEPT_FUNCTION(sigandset); \
4120 COMMON_INTERCEPT_FUNCTION(sigorset);
4121#else
4122#define INIT_SIGSET_LOGICOPS
4123#endif
4124
4125#if SANITIZER_INTERCEPT_SIGPENDING
4126INTERCEPTOR(int, sigpending, __sanitizer_sigset_t *set) {
4127 void *ctx;
4128 COMMON_INTERCEPTOR_ENTER(ctx, sigpending, set);
4129 // FIXME: under ASan the call below may write to freed memory and corrupt
4130 // its metadata. See
4131 // https://github.com/google/sanitizers/issues/321.
4132 int res = REAL(sigpending)(set);
4133 if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set));
4134 return res;
4135}
4136#define INIT_SIGPENDING COMMON_INTERCEPT_FUNCTION(sigpending);
4137#else
4138#define INIT_SIGPENDING
4139#endif
4140
4141#if SANITIZER_INTERCEPT_SIGPROCMASK
4142INTERCEPTOR(int, sigprocmask, int how, __sanitizer_sigset_t *set,
4143 __sanitizer_sigset_t *oldset) {
4144 void *ctx;
4145 COMMON_INTERCEPTOR_ENTER(ctx, sigprocmask, how, set, oldset);
4146 if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set));
4147 // FIXME: under ASan the call below may write to freed memory and corrupt
4148 // its metadata. See
4149 // https://github.com/google/sanitizers/issues/321.
4150 int res = REAL(sigprocmask)(how, set, oldset);
4151 if (!res && oldset)
4152 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldset, sizeof(*oldset));
4153 return res;
4154}
4155#define INIT_SIGPROCMASK COMMON_INTERCEPT_FUNCTION(sigprocmask);
4156#else
4157#define INIT_SIGPROCMASK
4158#endif
4159
4160#if SANITIZER_INTERCEPT_PTHREAD_SIGMASK
4161INTERCEPTOR(int, pthread_sigmask, int how, __sanitizer_sigset_t *set,
4162 __sanitizer_sigset_t *oldset) {
4163 void *ctx;
4164 COMMON_INTERCEPTOR_ENTER(ctx, pthread_sigmask, how, set, oldset);
4165 if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set));
4166 // FIXME: under ASan the call below may write to freed memory and corrupt
4167 // its metadata. See
4168 // https://github.com/google/sanitizers/issues/321.
4169 int res = REAL(pthread_sigmask)(how, set, oldset);
4170 if (!res && oldset)
4171 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldset, sizeof(*oldset));
4172 return res;
4173}
4174#define INIT_PTHREAD_SIGMASK COMMON_INTERCEPT_FUNCTION(pthread_sigmask);
4175#else
4176#define INIT_PTHREAD_SIGMASK
4177#endif
4178
4179#if SANITIZER_INTERCEPT_BACKTRACE
4180INTERCEPTOR(int, backtrace, void **buffer, int size) {
4181 void *ctx;
4182 COMMON_INTERCEPTOR_ENTER(ctx, backtrace, buffer, size);
4183 // FIXME: under ASan the call below may write to freed memory and corrupt
4184 // its metadata. See
4185 // https://github.com/google/sanitizers/issues/321.
4186 int res = REAL(backtrace)(buffer, size);
4187 if (res && buffer)
4188 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buffer, res * sizeof(*buffer));
4189 return res;
4190}
4191
4192INTERCEPTOR(char **, backtrace_symbols, void **buffer, int size) {
4193 void *ctx;
4194 COMMON_INTERCEPTOR_ENTER(ctx, backtrace_symbols, buffer, size);
4195 if (buffer && size)
4196 COMMON_INTERCEPTOR_READ_RANGE(ctx, buffer, size * sizeof(*buffer));
4197 // FIXME: under ASan the call below may write to freed memory and corrupt
4198 // its metadata. See
4199 // https://github.com/google/sanitizers/issues/321.
4200 char **res = REAL(backtrace_symbols)(buffer, size);
4201 if (res && size) {
4202 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, size * sizeof(*res));
4203 for (int i = 0; i < size; ++i)
4204 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res[i], REAL(strlen(res[i])) + 1);
4205 }
4206 return res;
4207}
4208#define INIT_BACKTRACE \
4209 COMMON_INTERCEPT_FUNCTION(backtrace); \
4210 COMMON_INTERCEPT_FUNCTION(backtrace_symbols);
4211#else
4212#define INIT_BACKTRACE
4213#endif
4214
4215#if SANITIZER_INTERCEPT__EXIT
4216INTERCEPTOR(void, _exit, int status) {
4217 void *ctx;
4218 COMMON_INTERCEPTOR_ENTER(ctx, _exit, status);
4219 COMMON_INTERCEPTOR_USER_CALLBACK_START();
4220 int status1 = COMMON_INTERCEPTOR_ON_EXIT(ctx);
4221 COMMON_INTERCEPTOR_USER_CALLBACK_END();
4222 if (status == 0) status = status1;
4223 REAL(_exit)(status);
4224}
4225#define INIT__EXIT COMMON_INTERCEPT_FUNCTION(_exit);
4226#else
4227#define INIT__EXIT
4228#endif
4229
4230#if SANITIZER_INTERCEPT_PTHREAD_MUTEX
4231INTERCEPTOR(int, pthread_mutex_lock, void *m) {
4232 void *ctx;
4233 COMMON_INTERCEPTOR_ENTER(ctx, pthread_mutex_lock, m);
4234 COMMON_INTERCEPTOR_MUTEX_PRE_LOCK(ctx, m);
4235 int res = REAL(pthread_mutex_lock)(m);
4236 if (res == errno_EOWNERDEAD)
4237 COMMON_INTERCEPTOR_MUTEX_REPAIR(ctx, m);
4238 if (res == 0 || res == errno_EOWNERDEAD)
4239 COMMON_INTERCEPTOR_MUTEX_POST_LOCK(ctx, m);
4240 if (res == errno_EINVAL)
4241 COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m);
4242 return res;
4243}
4244
4245INTERCEPTOR(int, pthread_mutex_unlock, void *m) {
4246 void *ctx;
4247 COMMON_INTERCEPTOR_ENTER(ctx, pthread_mutex_unlock, m);
4248 COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, m);
4249 int res = REAL(pthread_mutex_unlock)(m);
4250 if (res == errno_EINVAL)
4251 COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m);
4252 return res;
4253}
4254
4255#define INIT_PTHREAD_MUTEX_LOCK COMMON_INTERCEPT_FUNCTION(pthread_mutex_lock)
4256#define INIT_PTHREAD_MUTEX_UNLOCK \
4257 COMMON_INTERCEPT_FUNCTION(pthread_mutex_unlock)
4258#else
4259#define INIT_PTHREAD_MUTEX_LOCK
4260#define INIT_PTHREAD_MUTEX_UNLOCK
4261#endif
4262
4263#if SANITIZER_INTERCEPT___PTHREAD_MUTEX
4264INTERCEPTOR(int, __pthread_mutex_lock, void *m) {
4265 void *ctx;
4266 COMMON_INTERCEPTOR_ENTER(ctx, __pthread_mutex_lock, m);
4267 COMMON_INTERCEPTOR_MUTEX_PRE_LOCK(ctx, m);
4268 int res = REAL(__pthread_mutex_lock)(m);
4269 if (res == errno_EOWNERDEAD)
4270 COMMON_INTERCEPTOR_MUTEX_REPAIR(ctx, m);
4271 if (res == 0 || res == errno_EOWNERDEAD)
4272 COMMON_INTERCEPTOR_MUTEX_POST_LOCK(ctx, m);
4273 if (res == errno_EINVAL)
4274 COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m);
4275 return res;
4276}
4277
4278INTERCEPTOR(int, __pthread_mutex_unlock, void *m) {
4279 void *ctx;
4280 COMMON_INTERCEPTOR_ENTER(ctx, __pthread_mutex_unlock, m);
4281 COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, m);
4282 int res = REAL(__pthread_mutex_unlock)(m);
4283 if (res == errno_EINVAL)
4284 COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m);
4285 return res;
4286}
4287
4288#define INIT___PTHREAD_MUTEX_LOCK \
4289 COMMON_INTERCEPT_FUNCTION(__pthread_mutex_lock)
4290#define INIT___PTHREAD_MUTEX_UNLOCK \
4291 COMMON_INTERCEPT_FUNCTION(__pthread_mutex_unlock)
4292#else
4293#define INIT___PTHREAD_MUTEX_LOCK
4294#define INIT___PTHREAD_MUTEX_UNLOCK
4295#endif
4296
4297#if SANITIZER_INTERCEPT___LIBC_MUTEX
4298INTERCEPTOR(int, __libc_mutex_lock, void *m)
4299ALIAS(WRAPPER_NAME(pthread_mutex_lock));
4300
4301INTERCEPTOR(int, __libc_mutex_unlock, void *m)
4302ALIAS(WRAPPER_NAME(pthread_mutex_unlock));
4303
4304INTERCEPTOR(int, __libc_thr_setcancelstate, int state, int *oldstate)
4305ALIAS(WRAPPER_NAME(pthread_setcancelstate));
4306
4307#define INIT___LIBC_MUTEX_LOCK COMMON_INTERCEPT_FUNCTION(__libc_mutex_lock)
4308#define INIT___LIBC_MUTEX_UNLOCK COMMON_INTERCEPT_FUNCTION(__libc_mutex_unlock)
4309#define INIT___LIBC_THR_SETCANCELSTATE \
4310 COMMON_INTERCEPT_FUNCTION(__libc_thr_setcancelstate)
4311#else
4312#define INIT___LIBC_MUTEX_LOCK
4313#define INIT___LIBC_MUTEX_UNLOCK
4314#define INIT___LIBC_THR_SETCANCELSTATE
4315#endif
4316
4317#if SANITIZER_INTERCEPT_GETMNTENT || SANITIZER_INTERCEPT_GETMNTENT_R
4318static void write_mntent(void *ctx, __sanitizer_mntent *mnt) {
4319 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt, sizeof(*mnt));
4320 if (mnt->mnt_fsname)
4321 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_fsname,
4322 REAL(strlen)(mnt->mnt_fsname) + 1);
4323 if (mnt->mnt_dir)
4324 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_dir,
4325 REAL(strlen)(mnt->mnt_dir) + 1);
4326 if (mnt->mnt_type)
4327 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_type,
4328 REAL(strlen)(mnt->mnt_type) + 1);
4329 if (mnt->mnt_opts)
4330 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_opts,
4331 REAL(strlen)(mnt->mnt_opts) + 1);
4332}
4333#endif
4334
4335#if SANITIZER_INTERCEPT_GETMNTENT
4336INTERCEPTOR(__sanitizer_mntent *, getmntent, void *fp) {
4337 void *ctx;
4338 COMMON_INTERCEPTOR_ENTER(ctx, getmntent, fp);
4339 __sanitizer_mntent *res = REAL(getmntent)(fp);
4340 if (res) write_mntent(ctx, res);
4341 return res;
4342}
4343#define INIT_GETMNTENT COMMON_INTERCEPT_FUNCTION(getmntent);
4344#else
4345#define INIT_GETMNTENT
4346#endif
4347
4348#if SANITIZER_INTERCEPT_GETMNTENT_R
4349INTERCEPTOR(__sanitizer_mntent *, getmntent_r, void *fp,
4350 __sanitizer_mntent *mntbuf, char *buf, int buflen) {
4351 void *ctx;
4352 COMMON_INTERCEPTOR_ENTER(ctx, getmntent_r, fp, mntbuf, buf, buflen);
4353 __sanitizer_mntent *res = REAL(getmntent_r)(fp, mntbuf, buf, buflen);
4354 if (res) write_mntent(ctx, res);
4355 return res;
4356}
4357#define INIT_GETMNTENT_R COMMON_INTERCEPT_FUNCTION(getmntent_r);
4358#else
4359#define INIT_GETMNTENT_R
4360#endif
4361
4362#if SANITIZER_INTERCEPT_STATFS
4363INTERCEPTOR(int, statfs, char *path, void *buf) {
4364 void *ctx;
4365 COMMON_INTERCEPTOR_ENTER(ctx, statfs, path, buf);
4366 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
4367 // FIXME: under ASan the call below may write to freed memory and corrupt
4368 // its metadata. See
4369 // https://github.com/google/sanitizers/issues/321.
4370 int res = REAL(statfs)(path, buf);
4371 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs_sz);
4372 return res;
4373}
4374INTERCEPTOR(int, fstatfs, int fd, void *buf) {
4375 void *ctx;
4376 COMMON_INTERCEPTOR_ENTER(ctx, fstatfs, fd, buf);
4377 // FIXME: under ASan the call below may write to freed memory and corrupt
4378 // its metadata. See
4379 // https://github.com/google/sanitizers/issues/321.
4380 int res = REAL(fstatfs)(fd, buf);
4381 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs_sz);
4382 return res;
4383}
4384#define INIT_STATFS \
4385 COMMON_INTERCEPT_FUNCTION(statfs); \
4386 COMMON_INTERCEPT_FUNCTION(fstatfs);
4387#else
4388#define INIT_STATFS
4389#endif
4390
4391#if SANITIZER_INTERCEPT_STATFS64
4392INTERCEPTOR(int, statfs64, char *path, void *buf) {
4393 void *ctx;
4394 COMMON_INTERCEPTOR_ENTER(ctx, statfs64, path, buf);
4395 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
4396 // FIXME: under ASan the call below may write to freed memory and corrupt
4397 // its metadata. See
4398 // https://github.com/google/sanitizers/issues/321.
4399 int res = REAL(statfs64)(path, buf);
4400 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs64_sz);
4401 return res;
4402}
4403INTERCEPTOR(int, fstatfs64, int fd, void *buf) {
4404 void *ctx;
4405 COMMON_INTERCEPTOR_ENTER(ctx, fstatfs64, fd, buf);
4406 // FIXME: under ASan the call below may write to freed memory and corrupt
4407 // its metadata. See
4408 // https://github.com/google/sanitizers/issues/321.
4409 int res = REAL(fstatfs64)(fd, buf);
4410 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs64_sz);
4411 return res;
4412}
4413#define INIT_STATFS64 \
4414 COMMON_INTERCEPT_FUNCTION(statfs64); \
4415 COMMON_INTERCEPT_FUNCTION(fstatfs64);
4416#else
4417#define INIT_STATFS64
4418#endif
4419
4420#if SANITIZER_INTERCEPT_STATVFS
4421INTERCEPTOR(int, statvfs, char *path, void *buf) {
4422 void *ctx;
4423 COMMON_INTERCEPTOR_ENTER(ctx, statvfs, path, buf);
4424 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
4425 // FIXME: under ASan the call below may write to freed memory and corrupt
4426 // its metadata. See
4427 // https://github.com/google/sanitizers/issues/321.
4428 int res = REAL(statvfs)(path, buf);
4429 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz);
4430 return res;
4431}
4432INTERCEPTOR(int, fstatvfs, int fd, void *buf) {
4433 void *ctx;
4434 COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs, fd, buf);
4435 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
4436 // FIXME: under ASan the call below may write to freed memory and corrupt
4437 // its metadata. See
4438 // https://github.com/google/sanitizers/issues/321.
4439 int res = REAL(fstatvfs)(fd, buf);
4440 if (!res) {
4441 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz);
4442 if (fd >= 0)
4443 COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
4444 }
4445 return res;
4446}
4447#define INIT_STATVFS \
4448 COMMON_INTERCEPT_FUNCTION(statvfs); \
4449 COMMON_INTERCEPT_FUNCTION(fstatvfs);
4450#else
4451#define INIT_STATVFS
4452#endif
4453
4454#if SANITIZER_INTERCEPT_STATVFS64
4455INTERCEPTOR(int, statvfs64, char *path, void *buf) {
4456 void *ctx;
4457 COMMON_INTERCEPTOR_ENTER(ctx, statvfs64, path, buf);
4458 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
4459 // FIXME: under ASan the call below may write to freed memory and corrupt
4460 // its metadata. See
4461 // https://github.com/google/sanitizers/issues/321.
4462 int res = REAL(statvfs64)(path, buf);
4463 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs64_sz);
4464 return res;
4465}
4466INTERCEPTOR(int, fstatvfs64, int fd, void *buf) {
4467 void *ctx;
4468 COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs64, fd, buf);
4469 // FIXME: under ASan the call below may write to freed memory and corrupt
4470 // its metadata. See
4471 // https://github.com/google/sanitizers/issues/321.
4472 int res = REAL(fstatvfs64)(fd, buf);
4473 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs64_sz);
4474 return res;
4475}
4476#define INIT_STATVFS64 \
4477 COMMON_INTERCEPT_FUNCTION(statvfs64); \
4478 COMMON_INTERCEPT_FUNCTION(fstatvfs64);
4479#else
4480#define INIT_STATVFS64
4481#endif
4482
4483#if SANITIZER_INTERCEPT_INITGROUPS
4484INTERCEPTOR(int, initgroups, char *user, u32 group) {
4485 void *ctx;
4486 COMMON_INTERCEPTOR_ENTER(ctx, initgroups, user, group);
4487 if (user) COMMON_INTERCEPTOR_READ_RANGE(ctx, user, REAL(strlen)(user) + 1);
4488 int res = REAL(initgroups)(user, group);
4489 return res;
4490}
4491#define INIT_INITGROUPS COMMON_INTERCEPT_FUNCTION(initgroups);
4492#else
4493#define INIT_INITGROUPS
4494#endif
4495
4496#if SANITIZER_INTERCEPT_ETHER_NTOA_ATON
4497INTERCEPTOR(char *, ether_ntoa, __sanitizer_ether_addr *addr) {
4498 void *ctx;
4499 COMMON_INTERCEPTOR_ENTER(ctx, ether_ntoa, addr);
4500 if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr));
4501 char *res = REAL(ether_ntoa)(addr);
4502 if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
4503 return res;
4504}
4505INTERCEPTOR(__sanitizer_ether_addr *, ether_aton, char *buf) {
4506 void *ctx;
4507 COMMON_INTERCEPTOR_ENTER(ctx, ether_aton, buf);
4508 if (buf) COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, REAL(strlen)(buf) + 1);
4509 __sanitizer_ether_addr *res = REAL(ether_aton)(buf);
4510 if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, sizeof(*res));
4511 return res;
4512}
4513#define INIT_ETHER_NTOA_ATON \
4514 COMMON_INTERCEPT_FUNCTION(ether_ntoa); \
4515 COMMON_INTERCEPT_FUNCTION(ether_aton);
4516#else
4517#define INIT_ETHER_NTOA_ATON
4518#endif
4519
4520#if SANITIZER_INTERCEPT_ETHER_HOST
4521INTERCEPTOR(int, ether_ntohost, char *hostname, __sanitizer_ether_addr *addr) {
4522 void *ctx;
4523 COMMON_INTERCEPTOR_ENTER(ctx, ether_ntohost, hostname, addr);
4524 if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr));
4525 // FIXME: under ASan the call below may write to freed memory and corrupt
4526 // its metadata. See
4527 // https://github.com/google/sanitizers/issues/321.
4528 int res = REAL(ether_ntohost)(hostname, addr);
4529 if (!res && hostname)
4530 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, hostname, REAL(strlen)(hostname) + 1);
4531 return res;
4532}
4533INTERCEPTOR(int, ether_hostton, char *hostname, __sanitizer_ether_addr *addr) {
4534 void *ctx;
4535 COMMON_INTERCEPTOR_ENTER(ctx, ether_hostton, hostname, addr);
4536 if (hostname)
4537 COMMON_INTERCEPTOR_READ_RANGE(ctx, hostname, REAL(strlen)(hostname) + 1);
4538 // FIXME: under ASan the call below may write to freed memory and corrupt
4539 // its metadata. See
4540 // https://github.com/google/sanitizers/issues/321.
4541 int res = REAL(ether_hostton)(hostname, addr);
4542 if (!res && addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr));
4543 return res;
4544}
4545INTERCEPTOR(int, ether_line, char *line, __sanitizer_ether_addr *addr,
4546 char *hostname) {
4547 void *ctx;
4548 COMMON_INTERCEPTOR_ENTER(ctx, ether_line, line, addr, hostname);
4549 if (line) COMMON_INTERCEPTOR_READ_RANGE(ctx, line, REAL(strlen)(line) + 1);
4550 // FIXME: under ASan the call below may write to freed memory and corrupt
4551 // its metadata. See
4552 // https://github.com/google/sanitizers/issues/321.
4553 int res = REAL(ether_line)(line, addr, hostname);
4554 if (!res) {
4555 if (addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr));
4556 if (hostname)
4557 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, hostname, REAL(strlen)(hostname) + 1);
4558 }
4559 return res;
4560}
4561#define INIT_ETHER_HOST \
4562 COMMON_INTERCEPT_FUNCTION(ether_ntohost); \
4563 COMMON_INTERCEPT_FUNCTION(ether_hostton); \
4564 COMMON_INTERCEPT_FUNCTION(ether_line);
4565#else
4566#define INIT_ETHER_HOST
4567#endif
4568
4569#if SANITIZER_INTERCEPT_ETHER_R
4570INTERCEPTOR(char *, ether_ntoa_r, __sanitizer_ether_addr *addr, char *buf) {
4571 void *ctx;
4572 COMMON_INTERCEPTOR_ENTER(ctx, ether_ntoa_r, addr, buf);
4573 if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr));
4574 // FIXME: under ASan the call below may write to freed memory and corrupt
4575 // its metadata. See
4576 // https://github.com/google/sanitizers/issues/321.
4577 char *res = REAL(ether_ntoa_r)(addr, buf);
4578 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
4579 return res;
4580}
4581INTERCEPTOR(__sanitizer_ether_addr *, ether_aton_r, char *buf,
4582 __sanitizer_ether_addr *addr) {
4583 void *ctx;
4584 COMMON_INTERCEPTOR_ENTER(ctx, ether_aton_r, buf, addr);
4585 if (buf) COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, REAL(strlen)(buf) + 1);
4586 // FIXME: under ASan the call below may write to freed memory and corrupt
4587 // its metadata. See
4588 // https://github.com/google/sanitizers/issues/321.
4589 __sanitizer_ether_addr *res = REAL(ether_aton_r)(buf, addr);
4590 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, sizeof(*res));
4591 return res;
4592}
4593#define INIT_ETHER_R \
4594 COMMON_INTERCEPT_FUNCTION(ether_ntoa_r); \
4595 COMMON_INTERCEPT_FUNCTION(ether_aton_r);
4596#else
4597#define INIT_ETHER_R
4598#endif
4599
4600#if SANITIZER_INTERCEPT_SHMCTL
4601INTERCEPTOR(int, shmctl, int shmid, int cmd, void *buf) {
4602 void *ctx;
4603 COMMON_INTERCEPTOR_ENTER(ctx, shmctl, shmid, cmd, buf);
4604 // FIXME: under ASan the call below may write to freed memory and corrupt
4605 // its metadata. See
4606 // https://github.com/google/sanitizers/issues/321.
4607 int res = REAL(shmctl)(shmid, cmd, buf);
4608 if (res >= 0) {
4609 unsigned sz = 0;
4610 if (cmd == shmctl_ipc_stat || cmd == shmctl_shm_stat)
4611 sz = sizeof(__sanitizer_shmid_ds);
4612 else if (cmd == shmctl_ipc_info)
4613 sz = struct_shminfo_sz;
4614 else if (cmd == shmctl_shm_info)
4615 sz = struct_shm_info_sz;
4616 if (sz) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sz);
4617 }
4618 return res;
4619}
4620#define INIT_SHMCTL COMMON_INTERCEPT_FUNCTION(shmctl);
4621#else
4622#define INIT_SHMCTL
4623#endif
4624
4625#if SANITIZER_INTERCEPT_RANDOM_R
4626INTERCEPTOR(int, random_r, void *buf, u32 *result) {
4627 void *ctx;
4628 COMMON_INTERCEPTOR_ENTER(ctx, random_r, buf, result);
4629 // FIXME: under ASan the call below may write to freed memory and corrupt
4630 // its metadata. See
4631 // https://github.com/google/sanitizers/issues/321.
4632 int res = REAL(random_r)(buf, result);
4633 if (!res && result)
4634 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
4635 return res;
4636}
4637#define INIT_RANDOM_R COMMON_INTERCEPT_FUNCTION(random_r);
4638#else
4639#define INIT_RANDOM_R
4640#endif
4641
4642// FIXME: under ASan the REAL() call below may write to freed memory and corrupt
4643// its metadata. See
4644// https://github.com/google/sanitizers/issues/321.
4645#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET || \
4646 SANITIZER_INTERCEPT_PTHREAD_ATTR_GET_SCHED || \
4647 SANITIZER_INTERCEPT_PTHREAD_ATTR_GETINHERITSSCHED || \
4648 SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GET || \
4649 SANITIZER_INTERCEPT_PTHREAD_RWLOCKATTR_GET || \
4650 SANITIZER_INTERCEPT_PTHREAD_CONDATTR_GET || \
4651 SANITIZER_INTERCEPT_PTHREAD_BARRIERATTR_GET
4652#define INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(fn, sz) \
4653 INTERCEPTOR(int, fn, void *attr, void *r) { \
4654 void *ctx; \
4655 COMMON_INTERCEPTOR_ENTER(ctx, fn, attr, r); \
4656 int res = REAL(fn)(attr, r); \
4657 if (!res && r) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, r, sz); \
4658 return res; \
4659 }
4660#define INTERCEPTOR_PTHREAD_ATTR_GET(what, sz) \
4661 INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_attr_get##what, sz)
4662#define INTERCEPTOR_PTHREAD_MUTEXATTR_GET(what, sz) \
4663 INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_mutexattr_get##what, sz)
4664#define INTERCEPTOR_PTHREAD_RWLOCKATTR_GET(what, sz) \
4665 INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_rwlockattr_get##what, sz)
4666#define INTERCEPTOR_PTHREAD_CONDATTR_GET(what, sz) \
4667 INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_condattr_get##what, sz)
4668#define INTERCEPTOR_PTHREAD_BARRIERATTR_GET(what, sz) \
4669 INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_barrierattr_get##what, sz)
4670#endif
4671
4672#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET
4673INTERCEPTOR_PTHREAD_ATTR_GET(detachstate, sizeof(int))
4674INTERCEPTOR_PTHREAD_ATTR_GET(guardsize, sizeof(SIZE_T))
4675INTERCEPTOR_PTHREAD_ATTR_GET(scope, sizeof(int))
4676INTERCEPTOR_PTHREAD_ATTR_GET(stacksize, sizeof(SIZE_T))
4677INTERCEPTOR(int, pthread_attr_getstack, void *attr, void **addr, SIZE_T *size) {
4678 void *ctx;
4679 COMMON_INTERCEPTOR_ENTER(ctx, pthread_attr_getstack, attr, addr, size);
4680 // FIXME: under ASan the call below may write to freed memory and corrupt
4681 // its metadata. See
4682 // https://github.com/google/sanitizers/issues/321.
4683 int res = REAL(pthread_attr_getstack)(attr, addr, size);
4684 if (!res) {
4685 if (addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr));
4686 if (size) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, size, sizeof(*size));
4687 }
4688 return res;
4689}
4690
4691// We may need to call the real pthread_attr_getstack from the run-time
4692// in sanitizer_common, but we don't want to include the interception headers
4693// there. So, just define this function here.
4694namespace __sanitizer {
4695extern "C" {
4696int real_pthread_attr_getstack(void *attr, void **addr, SIZE_T *size) {
4697 return REAL(pthread_attr_getstack)(attr, addr, size);
4698}
4699} // extern "C"
4700} // namespace __sanitizer
4701
4702#define INIT_PTHREAD_ATTR_GET \
4703 COMMON_INTERCEPT_FUNCTION(pthread_attr_getdetachstate); \
4704 COMMON_INTERCEPT_FUNCTION(pthread_attr_getguardsize); \
4705 COMMON_INTERCEPT_FUNCTION(pthread_attr_getscope); \
4706 COMMON_INTERCEPT_FUNCTION(pthread_attr_getstacksize); \
4707 COMMON_INTERCEPT_FUNCTION(pthread_attr_getstack);
4708#else
4709#define INIT_PTHREAD_ATTR_GET
4710#endif
4711
4712#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET_SCHED
4713INTERCEPTOR_PTHREAD_ATTR_GET(schedparam, struct_sched_param_sz)
4714INTERCEPTOR_PTHREAD_ATTR_GET(schedpolicy, sizeof(int))
4715
4716#define INIT_PTHREAD_ATTR_GET_SCHED \
4717 COMMON_INTERCEPT_FUNCTION(pthread_attr_getschedparam); \
4718 COMMON_INTERCEPT_FUNCTION(pthread_attr_getschedpolicy);
4719#else
4720#define INIT_PTHREAD_ATTR_GET_SCHED
4721#endif
4722
4723#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GETINHERITSCHED
4724INTERCEPTOR_PTHREAD_ATTR_GET(inheritsched, sizeof(int))
4725
4726#define INIT_PTHREAD_ATTR_GETINHERITSCHED \
4727 COMMON_INTERCEPT_FUNCTION(pthread_attr_getinheritsched);
4728#else
4729#define INIT_PTHREAD_ATTR_GETINHERITSCHED
4730#endif
4731
4732#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GETAFFINITY_NP
4733INTERCEPTOR(int, pthread_attr_getaffinity_np, void *attr, SIZE_T cpusetsize,
4734 void *cpuset) {
4735 void *ctx;
4736 COMMON_INTERCEPTOR_ENTER(ctx, pthread_attr_getaffinity_np, attr, cpusetsize,
4737 cpuset);
4738 // FIXME: under ASan the call below may write to freed memory and corrupt
4739 // its metadata. See
4740 // https://github.com/google/sanitizers/issues/321.
4741 int res = REAL(pthread_attr_getaffinity_np)(attr, cpusetsize, cpuset);
4742 if (!res && cpusetsize && cpuset)
4743 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cpuset, cpusetsize);
4744 return res;
4745}
4746
4747#define INIT_PTHREAD_ATTR_GETAFFINITY_NP \
4748 COMMON_INTERCEPT_FUNCTION(pthread_attr_getaffinity_np);
4749#else
4750#define INIT_PTHREAD_ATTR_GETAFFINITY_NP
4751#endif
4752
4753#if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETPSHARED
4754INTERCEPTOR_PTHREAD_MUTEXATTR_GET(pshared, sizeof(int))
4755#define INIT_PTHREAD_MUTEXATTR_GETPSHARED \
4756 COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getpshared);
4757#else
4758#define INIT_PTHREAD_MUTEXATTR_GETPSHARED
4759#endif
4760
4761#if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETTYPE
4762INTERCEPTOR_PTHREAD_MUTEXATTR_GET(type, sizeof(int))
4763#define INIT_PTHREAD_MUTEXATTR_GETTYPE \
4764 COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_gettype);
4765#else
4766#define INIT_PTHREAD_MUTEXATTR_GETTYPE
4767#endif
4768
4769#if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETPROTOCOL
4770INTERCEPTOR_PTHREAD_MUTEXATTR_GET(protocol, sizeof(int))
4771#define INIT_PTHREAD_MUTEXATTR_GETPROTOCOL \
4772 COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getprotocol);
4773#else
4774#define INIT_PTHREAD_MUTEXATTR_GETPROTOCOL
4775#endif
4776
4777#if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETPRIOCEILING
4778INTERCEPTOR_PTHREAD_MUTEXATTR_GET(prioceiling, sizeof(int))
4779#define INIT_PTHREAD_MUTEXATTR_GETPRIOCEILING \
4780 COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getprioceiling);
4781#else
4782#define INIT_PTHREAD_MUTEXATTR_GETPRIOCEILING
4783#endif
4784
4785#if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETROBUST
4786INTERCEPTOR_PTHREAD_MUTEXATTR_GET(robust, sizeof(int))
4787#define INIT_PTHREAD_MUTEXATTR_GETROBUST \
4788 COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getrobust);
4789#else
4790#define INIT_PTHREAD_MUTEXATTR_GETROBUST
4791#endif
4792
4793#if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETROBUST_NP
4794INTERCEPTOR_PTHREAD_MUTEXATTR_GET(robust_np, sizeof(int))
4795#define INIT_PTHREAD_MUTEXATTR_GETROBUST_NP \
4796 COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getrobust_np);
4797#else
4798#define INIT_PTHREAD_MUTEXATTR_GETROBUST_NP
4799#endif
4800
4801#if SANITIZER_INTERCEPT_PTHREAD_RWLOCKATTR_GETPSHARED
4802INTERCEPTOR_PTHREAD_RWLOCKATTR_GET(pshared, sizeof(int))
4803#define INIT_PTHREAD_RWLOCKATTR_GETPSHARED \
4804 COMMON_INTERCEPT_FUNCTION(pthread_rwlockattr_getpshared);
4805#else
4806#define INIT_PTHREAD_RWLOCKATTR_GETPSHARED
4807#endif
4808
4809#if SANITIZER_INTERCEPT_PTHREAD_RWLOCKATTR_GETKIND_NP
4810INTERCEPTOR_PTHREAD_RWLOCKATTR_GET(kind_np, sizeof(int))
4811#define INIT_PTHREAD_RWLOCKATTR_GETKIND_NP \
4812 COMMON_INTERCEPT_FUNCTION(pthread_rwlockattr_getkind_np);
4813#else
4814#define INIT_PTHREAD_RWLOCKATTR_GETKIND_NP
4815#endif
4816
4817#if SANITIZER_INTERCEPT_PTHREAD_CONDATTR_GETPSHARED
4818INTERCEPTOR_PTHREAD_CONDATTR_GET(pshared, sizeof(int))
4819#define INIT_PTHREAD_CONDATTR_GETPSHARED \
4820 COMMON_INTERCEPT_FUNCTION(pthread_condattr_getpshared);
4821#else
4822#define INIT_PTHREAD_CONDATTR_GETPSHARED
4823#endif
4824
4825#if SANITIZER_INTERCEPT_PTHREAD_CONDATTR_GETCLOCK
4826INTERCEPTOR_PTHREAD_CONDATTR_GET(clock, sizeof(int))
4827#define INIT_PTHREAD_CONDATTR_GETCLOCK \
4828 COMMON_INTERCEPT_FUNCTION(pthread_condattr_getclock);
4829#else
4830#define INIT_PTHREAD_CONDATTR_GETCLOCK
4831#endif
4832
4833#if SANITIZER_INTERCEPT_PTHREAD_BARRIERATTR_GETPSHARED
4834INTERCEPTOR_PTHREAD_BARRIERATTR_GET(pshared, sizeof(int)) // !mac !android
4835#define INIT_PTHREAD_BARRIERATTR_GETPSHARED \
4836 COMMON_INTERCEPT_FUNCTION(pthread_barrierattr_getpshared);
4837#else
4838#define INIT_PTHREAD_BARRIERATTR_GETPSHARED
4839#endif
4840
4841#if SANITIZER_INTERCEPT_TMPNAM
4842INTERCEPTOR(char *, tmpnam, char *s) {
4843 void *ctx;
4844 COMMON_INTERCEPTOR_ENTER(ctx, tmpnam, s);
4845 char *res = REAL(tmpnam)(s);
4846 if (res) {
4847 if (s)
4848 // FIXME: under ASan the call below may write to freed memory and corrupt
4849 // its metadata. See
4850 // https://github.com/google/sanitizers/issues/321.
4851 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1);
4852 else
4853 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
4854 }
4855 return res;
4856}
4857#define INIT_TMPNAM COMMON_INTERCEPT_FUNCTION(tmpnam);
4858#else
4859#define INIT_TMPNAM
4860#endif
4861
4862#if SANITIZER_INTERCEPT_TMPNAM_R
4863INTERCEPTOR(char *, tmpnam_r, char *s) {
4864 void *ctx;
4865 COMMON_INTERCEPTOR_ENTER(ctx, tmpnam_r, s);
4866 // FIXME: under ASan the call below may write to freed memory and corrupt
4867 // its metadata. See
4868 // https://github.com/google/sanitizers/issues/321.
4869 char *res = REAL(tmpnam_r)(s);
4870 if (res && s) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1);
4871 return res;
4872}
4873#define INIT_TMPNAM_R COMMON_INTERCEPT_FUNCTION(tmpnam_r);
4874#else
4875#define INIT_TMPNAM_R
4876#endif
4877
4878#if SANITIZER_INTERCEPT_PTSNAME
4879INTERCEPTOR(char *, ptsname, int fd) {
4880 void *ctx;
4881 COMMON_INTERCEPTOR_ENTER(ctx, ptsname, fd);
4882 char *res = REAL(ptsname)(fd);
4883 if (res != nullptr)
4884 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
4885 return res;
4886}
4887#define INIT_PTSNAME COMMON_INTERCEPT_FUNCTION(ptsname);
4888#else
4889#define INIT_PTSNAME
4890#endif
4891
4892#if SANITIZER_INTERCEPT_PTSNAME_R
4893INTERCEPTOR(int, ptsname_r, int fd, char *name, SIZE_T namesize) {
4894 void *ctx;
4895 COMMON_INTERCEPTOR_ENTER(ctx, ptsname_r, fd, name, namesize);
4896 int res = REAL(ptsname_r)(fd, name, namesize);
4897 if (res == 0)
4898 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, REAL(strlen)(name) + 1);
4899 return res;
4900}
4901#define INIT_PTSNAME_R COMMON_INTERCEPT_FUNCTION(ptsname_r);
4902#else
4903#define INIT_PTSNAME_R
4904#endif
4905
4906#if SANITIZER_INTERCEPT_TTYNAME
4907INTERCEPTOR(char *, ttyname, int fd) {
4908 void *ctx;
4909 COMMON_INTERCEPTOR_ENTER(ctx, ttyname, fd);
4910 char *res = REAL(ttyname)(fd);
4911 if (res != nullptr)
4912 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
4913 return res;
4914}
4915#define INIT_TTYNAME COMMON_INTERCEPT_FUNCTION(ttyname);
4916#else
4917#define INIT_TTYNAME
4918#endif
4919
4920#if SANITIZER_INTERCEPT_TTYNAME_R
4921INTERCEPTOR(int, ttyname_r, int fd, char *name, SIZE_T namesize) {
4922 void *ctx;
4923 COMMON_INTERCEPTOR_ENTER(ctx, ttyname_r, fd, name, namesize);
4924 int res = REAL(ttyname_r)(fd, name, namesize);
4925 if (res == 0)
4926 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, REAL(strlen)(name) + 1);
4927 return res;
4928}
4929#define INIT_TTYNAME_R COMMON_INTERCEPT_FUNCTION(ttyname_r);
4930#else
4931#define INIT_TTYNAME_R
4932#endif
4933
4934#if SANITIZER_INTERCEPT_TEMPNAM
4935INTERCEPTOR(char *, tempnam, char *dir, char *pfx) {
4936 void *ctx;
4937 COMMON_INTERCEPTOR_ENTER(ctx, tempnam, dir, pfx);
4938 if (dir) COMMON_INTERCEPTOR_READ_RANGE(ctx, dir, REAL(strlen)(dir) + 1);
4939 if (pfx) COMMON_INTERCEPTOR_READ_RANGE(ctx, pfx, REAL(strlen)(pfx) + 1);
4940 char *res = REAL(tempnam)(dir, pfx);
4941 if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
4942 return res;
4943}
4944#define INIT_TEMPNAM COMMON_INTERCEPT_FUNCTION(tempnam);
4945#else
4946#define INIT_TEMPNAM
4947#endif
4948
4949#if SANITIZER_INTERCEPT_PTHREAD_SETNAME_NP && !SANITIZER_NETBSD
4950INTERCEPTOR(int, pthread_setname_np, uptr thread, const char *name) {
4951 void *ctx;
4952 COMMON_INTERCEPTOR_ENTER(ctx, pthread_setname_np, thread, name);
4953 COMMON_INTERCEPTOR_READ_STRING(ctx, name, 0);
4954 COMMON_INTERCEPTOR_SET_PTHREAD_NAME(ctx, thread, name);
4955 return REAL(pthread_setname_np)(thread, name);
4956}
4957#define INIT_PTHREAD_SETNAME_NP COMMON_INTERCEPT_FUNCTION(pthread_setname_np);
4958#elif SANITIZER_INTERCEPT_PTHREAD_SETNAME_NP && SANITIZER_NETBSD
4959INTERCEPTOR(int, pthread_setname_np, uptr thread, const char *name, void *arg) {
4960 void *ctx;
4961 char newname[32]; // PTHREAD_MAX_NAMELEN_NP=32
4962 COMMON_INTERCEPTOR_ENTER(ctx, pthread_setname_np, thread, name, arg);
4963 COMMON_INTERCEPTOR_READ_STRING(ctx, name, 0);
4964 internal_snprintf(newname, sizeof(newname), name, arg);
4965 COMMON_INTERCEPTOR_SET_PTHREAD_NAME(ctx, thread, newname);
4966 return REAL(pthread_setname_np)(thread, name, arg);
4967}
4968#define INIT_PTHREAD_SETNAME_NP COMMON_INTERCEPT_FUNCTION(pthread_setname_np);
4969#else
4970#define INIT_PTHREAD_SETNAME_NP
4971#endif
4972
4973#if SANITIZER_INTERCEPT_PTHREAD_GETNAME_NP
4974INTERCEPTOR(int, pthread_getname_np, uptr thread, char *name, SIZE_T len) {
4975 void *ctx;
4976 COMMON_INTERCEPTOR_ENTER(ctx, pthread_getname_np, thread, name, len);
4977 int res = REAL(pthread_getname_np)(thread, name, len);
4978 if (!res)
4979 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, internal_strnlen(name, len) + 1);
4980 return res;
4981}
4982#define INIT_PTHREAD_GETNAME_NP COMMON_INTERCEPT_FUNCTION(pthread_getname_np);
4983#else
4984#define INIT_PTHREAD_GETNAME_NP
4985#endif
4986
4987#if SANITIZER_INTERCEPT_SINCOS
4988INTERCEPTOR(void, sincos, double x, double *sin, double *cos) {
4989 void *ctx;
4990 COMMON_INTERCEPTOR_ENTER(ctx, sincos, x, sin, cos);
4991 // FIXME: under ASan the call below may write to freed memory and corrupt
4992 // its metadata. See
4993 // https://github.com/google/sanitizers/issues/321.
4994 REAL(sincos)(x, sin, cos);
4995 if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin));
4996 if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos));
4997}
4998INTERCEPTOR(void, sincosf, float x, float *sin, float *cos) {
4999 void *ctx;
5000 COMMON_INTERCEPTOR_ENTER(ctx, sincosf, x, sin, cos);
5001 // FIXME: under ASan the call below may write to freed memory and corrupt
5002 // its metadata. See
5003 // https://github.com/google/sanitizers/issues/321.
5004 REAL(sincosf)(x, sin, cos);
5005 if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin));
5006 if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos));
5007}
5008INTERCEPTOR(void, sincosl, long double x, long double *sin, long double *cos) {
5009 void *ctx;
5010 COMMON_INTERCEPTOR_ENTER(ctx, sincosl, x, sin, cos);
5011 // FIXME: under ASan the call below may write to freed memory and corrupt
5012 // its metadata. See
5013 // https://github.com/google/sanitizers/issues/321.
5014 REAL(sincosl)(x, sin, cos);
5015 if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin));
5016 if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos));
5017}
5018#define INIT_SINCOS \
5019 COMMON_INTERCEPT_FUNCTION(sincos); \
5020 COMMON_INTERCEPT_FUNCTION(sincosf); \
5021 COMMON_INTERCEPT_FUNCTION_LDBL(sincosl);
5022#else
5023#define INIT_SINCOS
5024#endif
5025
5026#if SANITIZER_INTERCEPT_REMQUO
5027INTERCEPTOR(double, remquo, double x, double y, int *quo) {
5028 void *ctx;
5029 COMMON_INTERCEPTOR_ENTER(ctx, remquo, x, y, quo);
5030 // FIXME: under ASan the call below may write to freed memory and corrupt
5031 // its metadata. See
5032 // https://github.com/google/sanitizers/issues/321.
5033 double res = REAL(remquo)(x, y, quo);
5034 if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo));
5035 return res;
5036}
5037INTERCEPTOR(float, remquof, float x, float y, int *quo) {
5038 void *ctx;
5039 COMMON_INTERCEPTOR_ENTER(ctx, remquof, x, y, quo);
5040 // FIXME: under ASan the call below may write to freed memory and corrupt
5041 // its metadata. See
5042 // https://github.com/google/sanitizers/issues/321.
5043 float res = REAL(remquof)(x, y, quo);
5044 if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo));
5045 return res;
5046}
5047#define INIT_REMQUO \
5048 COMMON_INTERCEPT_FUNCTION(remquo); \
5049 COMMON_INTERCEPT_FUNCTION(remquof);
5050#else
5051#define INIT_REMQUO
5052#endif
5053
5054#if SANITIZER_INTERCEPT_REMQUOL
5055INTERCEPTOR(long double, remquol, long double x, long double y, int *quo) {
5056 void *ctx;
5057 COMMON_INTERCEPTOR_ENTER(ctx, remquol, x, y, quo);
5058 // FIXME: under ASan the call below may write to freed memory and corrupt
5059 // its metadata. See
5060 // https://github.com/google/sanitizers/issues/321.
5061 long double res = REAL(remquol)(x, y, quo);
5062 if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo));
5063 return res;
5064}
5065#define INIT_REMQUOL \
5066 COMMON_INTERCEPT_FUNCTION_LDBL(remquol);
5067#else
5068#define INIT_REMQUOL
5069#endif
5070
5071#if SANITIZER_INTERCEPT_LGAMMA
5072extern int signgam;
5073INTERCEPTOR(double, lgamma, double x) {
5074 void *ctx;
5075 COMMON_INTERCEPTOR_ENTER(ctx, lgamma, x);
5076 double res = REAL(lgamma)(x);
5077 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam));
5078 return res;
5079}
5080INTERCEPTOR(float, lgammaf, float x) {
5081 void *ctx;
5082 COMMON_INTERCEPTOR_ENTER(ctx, lgammaf, x);
5083 float res = REAL(lgammaf)(x);
5084 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam));
5085 return res;
5086}
5087#define INIT_LGAMMA \
5088 COMMON_INTERCEPT_FUNCTION(lgamma); \
5089 COMMON_INTERCEPT_FUNCTION(lgammaf);
5090#else
5091#define INIT_LGAMMA
5092#endif
5093
5094#if SANITIZER_INTERCEPT_LGAMMAL
5095INTERCEPTOR(long double, lgammal, long double x) {
5096 void *ctx;
5097 COMMON_INTERCEPTOR_ENTER(ctx, lgammal, x);
5098 long double res = REAL(lgammal)(x);
5099 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam));
5100 return res;
5101}
5102#define INIT_LGAMMAL \
5103 COMMON_INTERCEPT_FUNCTION_LDBL(lgammal);
5104#else
5105#define INIT_LGAMMAL
5106#endif
5107
5108#if SANITIZER_INTERCEPT_LGAMMA_R
5109INTERCEPTOR(double, lgamma_r, double x, int *signp) {
5110 void *ctx;
5111 COMMON_INTERCEPTOR_ENTER(ctx, lgamma_r, x, signp);
5112 // FIXME: under ASan the call below may write to freed memory and corrupt
5113 // its metadata. See
5114 // https://github.com/google/sanitizers/issues/321.
5115 double res = REAL(lgamma_r)(x, signp);
5116 if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp));
5117 return res;
5118}
5119INTERCEPTOR(float, lgammaf_r, float x, int *signp) {
5120 void *ctx;
5121 COMMON_INTERCEPTOR_ENTER(ctx, lgammaf_r, x, signp);
5122 // FIXME: under ASan the call below may write to freed memory and corrupt
5123 // its metadata. See
5124 // https://github.com/google/sanitizers/issues/321.
5125 float res = REAL(lgammaf_r)(x, signp);
5126 if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp));
5127 return res;
5128}
5129#define INIT_LGAMMA_R \
5130 COMMON_INTERCEPT_FUNCTION(lgamma_r); \
5131 COMMON_INTERCEPT_FUNCTION(lgammaf_r);
5132#else
5133#define INIT_LGAMMA_R
5134#endif
5135
5136#if SANITIZER_INTERCEPT_LGAMMAL_R
5137INTERCEPTOR(long double, lgammal_r, long double x, int *signp) {
5138 void *ctx;
5139 COMMON_INTERCEPTOR_ENTER(ctx, lgammal_r, x, signp);
5140 // FIXME: under ASan the call below may write to freed memory and corrupt
5141 // its metadata. See
5142 // https://github.com/google/sanitizers/issues/321.
5143 long double res = REAL(lgammal_r)(x, signp);
5144 if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp));
5145 return res;
5146}
5147#define INIT_LGAMMAL_R COMMON_INTERCEPT_FUNCTION_LDBL(lgammal_r);
5148#else
5149#define INIT_LGAMMAL_R
5150#endif
5151
5152#if SANITIZER_INTERCEPT_DRAND48_R
5153INTERCEPTOR(int, drand48_r, void *buffer, double *result) {
5154 void *ctx;
5155 COMMON_INTERCEPTOR_ENTER(ctx, drand48_r, buffer, result);
5156 // FIXME: under ASan the call below may write to freed memory and corrupt
5157 // its metadata. See
5158 // https://github.com/google/sanitizers/issues/321.
5159 int res = REAL(drand48_r)(buffer, result);
5160 if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
5161 return res;
5162}
5163INTERCEPTOR(int, lrand48_r, void *buffer, long *result) {
5164 void *ctx;
5165 COMMON_INTERCEPTOR_ENTER(ctx, lrand48_r, buffer, result);
5166 // FIXME: under ASan the call below may write to freed memory and corrupt
5167 // its metadata. See
5168 // https://github.com/google/sanitizers/issues/321.
5169 int res = REAL(lrand48_r)(buffer, result);
5170 if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
5171 return res;
5172}
5173#define INIT_DRAND48_R \
5174 COMMON_INTERCEPT_FUNCTION(drand48_r); \
5175 COMMON_INTERCEPT_FUNCTION(lrand48_r);
5176#else
5177#define INIT_DRAND48_R
5178#endif
5179
5180#if SANITIZER_INTERCEPT_RAND_R
5181INTERCEPTOR(int, rand_r, unsigned *seedp) {
5182 void *ctx;
5183 COMMON_INTERCEPTOR_ENTER(ctx, rand_r, seedp);
5184 COMMON_INTERCEPTOR_READ_RANGE(ctx, seedp, sizeof(*seedp));
5185 return REAL(rand_r)(seedp);
5186}
5187#define INIT_RAND_R COMMON_INTERCEPT_FUNCTION(rand_r);
5188#else
5189#define INIT_RAND_R
5190#endif
5191
5192#if SANITIZER_INTERCEPT_GETLINE
5193INTERCEPTOR(SSIZE_T, getline, char **lineptr, SIZE_T *n, void *stream) {
5194 void *ctx;
5195 COMMON_INTERCEPTOR_ENTER(ctx, getline, lineptr, n, stream);
5196 // FIXME: under ASan the call below may write to freed memory and corrupt
5197 // its metadata. See
5198 // https://github.com/google/sanitizers/issues/321.
5199 SSIZE_T res = REAL(getline)(lineptr, n, stream);
5200 if (res > 0) {
5201 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineptr, sizeof(*lineptr));
5202 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n));
5203 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *lineptr, res + 1);
5204 }
5205 return res;
5206}
5207
5208// FIXME: under ASan the call below may write to freed memory and corrupt its
5209// metadata. See
5210// https://github.com/google/sanitizers/issues/321.
5211#define GETDELIM_INTERCEPTOR_IMPL(vname) \
5212 { \
5213 void *ctx; \
5214 COMMON_INTERCEPTOR_ENTER(ctx, vname, lineptr, n, delim, stream); \
5215 SSIZE_T res = REAL(vname)(lineptr, n, delim, stream); \
5216 if (res > 0) { \
5217 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineptr, sizeof(*lineptr)); \
5218 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n)); \
5219 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *lineptr, res + 1); \
5220 } \
5221 return res; \
5222 }
5223
5224INTERCEPTOR(SSIZE_T, __getdelim, char **lineptr, SIZE_T *n, int delim,
5225 void *stream)
5226GETDELIM_INTERCEPTOR_IMPL(__getdelim)
5227
5228// There's no __getdelim() on FreeBSD so we supply the getdelim() interceptor
5229// with its own body.
5230INTERCEPTOR(SSIZE_T, getdelim, char **lineptr, SIZE_T *n, int delim,
5231 void *stream)
5232GETDELIM_INTERCEPTOR_IMPL(getdelim)
5233
5234#define INIT_GETLINE \
5235 COMMON_INTERCEPT_FUNCTION(getline); \
5236 COMMON_INTERCEPT_FUNCTION(__getdelim); \
5237 COMMON_INTERCEPT_FUNCTION(getdelim);
5238#else
5239#define INIT_GETLINE
5240#endif
5241
5242#if SANITIZER_INTERCEPT_ICONV
5243INTERCEPTOR(SIZE_T, iconv, void *cd, char **inbuf, SIZE_T *inbytesleft,
5244 char **outbuf, SIZE_T *outbytesleft) {
5245 void *ctx;
5246 COMMON_INTERCEPTOR_ENTER(ctx, iconv, cd, inbuf, inbytesleft, outbuf,
5247 outbytesleft);
5248 if (inbytesleft)
5249 COMMON_INTERCEPTOR_READ_RANGE(ctx, inbytesleft, sizeof(*inbytesleft));
5250 if (inbuf && inbytesleft)
5251 COMMON_INTERCEPTOR_READ_RANGE(ctx, *inbuf, *inbytesleft);
5252 if (outbytesleft)
5253 COMMON_INTERCEPTOR_READ_RANGE(ctx, outbytesleft, sizeof(*outbytesleft));
5254 void *outbuf_orig = outbuf ? *outbuf : nullptr;
5255 // FIXME: under ASan the call below may write to freed memory and corrupt
5256 // its metadata. See
5257 // https://github.com/google/sanitizers/issues/321.
5258 SIZE_T res = REAL(iconv)(cd, inbuf, inbytesleft, outbuf, outbytesleft);
5259 if (outbuf && *outbuf > outbuf_orig) {
5260 SIZE_T sz = (char *)*outbuf - (char *)outbuf_orig;
5261 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, outbuf_orig, sz);
5262 }
5263 return res;
5264}
5265#define INIT_ICONV COMMON_INTERCEPT_FUNCTION(iconv);
5266#else
5267#define INIT_ICONV
5268#endif
5269
5270#if SANITIZER_INTERCEPT_TIMES
5271INTERCEPTOR(__sanitizer_clock_t, times, void *tms) {
5272 void *ctx;
5273 COMMON_INTERCEPTOR_ENTER(ctx, times, tms);
5274 // FIXME: under ASan the call below may write to freed memory and corrupt
5275 // its metadata. See
5276 // https://github.com/google/sanitizers/issues/321.
5277 __sanitizer_clock_t res = REAL(times)(tms);
5278 if (res != (__sanitizer_clock_t)-1 && tms)
5279 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tms, struct_tms_sz);
5280 return res;
5281}
5282#define INIT_TIMES COMMON_INTERCEPT_FUNCTION(times);
5283#else
5284#define INIT_TIMES
5285#endif
5286
5287#if SANITIZER_INTERCEPT_TLS_GET_ADDR
5288#if !SANITIZER_S390
5289#define INIT_TLS_GET_ADDR COMMON_INTERCEPT_FUNCTION(__tls_get_addr)
5290// If you see any crashes around this functions, there are 2 known issues with
5291// it: 1. __tls_get_addr can be called with mis-aligned stack due to:
5292// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58066
5293// 2. It can be called recursively if sanitizer code uses __tls_get_addr
5294// to access thread local variables (it should not happen normally,
5295// because sanitizers use initial-exec tls model).
5296INTERCEPTOR(void *, __tls_get_addr, void *arg) {
5297 void *ctx;
5298 COMMON_INTERCEPTOR_ENTER(ctx, __tls_get_addr, arg);
5299 void *res = REAL(__tls_get_addr)(arg);
5300 uptr tls_begin, tls_end;
5301 COMMON_INTERCEPTOR_GET_TLS_RANGE(&tls_begin, &tls_end);
5302 DTLS::DTV *dtv = DTLS_on_tls_get_addr(arg, res, tls_begin, tls_end);
5303 if (dtv) {
5304 // New DTLS block has been allocated.
5305 COMMON_INTERCEPTOR_INITIALIZE_RANGE((void *)dtv->beg, dtv->size);
5306 }
5307 return res;
5308}
5309#if SANITIZER_PPC
5310// On PowerPC, we also need to intercept __tls_get_addr_opt, which has
5311// mostly the same semantics as __tls_get_addr, but its presence enables
5312// some optimizations in linker (which are safe to ignore here).
5313extern "C" __attribute__((alias("__interceptor___tls_get_addr"),
5314 visibility("default")))
5315void *__tls_get_addr_opt(void *arg);
5316#endif
5317#else // SANITIZER_S390
5318// On s390, we have to intercept two functions here:
5319// - __tls_get_addr_internal, which is a glibc-internal function that is like
5320// the usual __tls_get_addr, but returns a TP-relative offset instead of
5321// a proper pointer. It is used by dlsym for TLS symbols.
5322// - __tls_get_offset, which is like the above, but also takes a GOT-relative
5323// descriptor offset as an argument instead of a pointer. GOT address
5324// is passed in r12, so it's necessary to write it in assembly. This is
5325// the function used by the compiler.
5326extern "C" uptr __tls_get_offset_wrapper(void *arg, uptr (*fn)(void *arg));
5327#define INIT_TLS_GET_ADDR COMMON_INTERCEPT_FUNCTION(__tls_get_offset)
5328DEFINE_REAL(uptr, __tls_get_offset, void *arg)
5329extern "C" uptr __tls_get_offset(void *arg);
5330extern "C" uptr __interceptor___tls_get_offset(void *arg);
5331INTERCEPTOR(uptr, __tls_get_addr_internal, void *arg) {
5332 void *ctx;
5333 COMMON_INTERCEPTOR_ENTER(ctx, __tls_get_addr_internal, arg);
5334 uptr res = __tls_get_offset_wrapper(arg, REAL(__tls_get_offset));
5335 uptr tp = reinterpret_cast<uptr>(__builtin_thread_pointer());
5336 void *ptr = reinterpret_cast<void *>(res + tp);
5337 uptr tls_begin, tls_end;
5338 COMMON_INTERCEPTOR_GET_TLS_RANGE(&tls_begin, &tls_end);
5339 DTLS::DTV *dtv = DTLS_on_tls_get_addr(arg, ptr, tls_begin, tls_end);
5340 if (dtv) {
5341 // New DTLS block has been allocated.
5342 COMMON_INTERCEPTOR_INITIALIZE_RANGE((void *)dtv->beg, dtv->size);
5343 }
5344 return res;
5345}
5346// We need a hidden symbol aliasing the above, so that we can jump
5347// directly to it from the assembly below.
5348extern "C" __attribute__((alias("__interceptor___tls_get_addr_internal"),
5349 visibility("hidden")))
5350uptr __tls_get_addr_hidden(void *arg);
5351// Now carefully intercept __tls_get_offset.
5352asm(
5353 ".text\n"
5354// The __intercept_ version has to exist, so that gen_dynamic_list.py
5355// exports our symbol.
5356 ".weak __tls_get_offset\n"
5357 ".type __tls_get_offset, @function\n"
5358 "__tls_get_offset:\n"
5359 ".global __interceptor___tls_get_offset\n"
5360 ".type __interceptor___tls_get_offset, @function\n"
5361 "__interceptor___tls_get_offset:\n"
5362#ifdef __s390x__
5363 "la %r2, 0(%r2,%r12)\n"
5364 "jg __tls_get_addr_hidden\n"
5365#else
5366 "basr %r3,0\n"
5367 "0: la %r2,0(%r2,%r12)\n"
5368 "l %r4,1f-0b(%r3)\n"
5369 "b 0(%r4,%r3)\n"
5370 "1: .long __tls_get_addr_hidden - 0b\n"
5371#endif
5372 ".size __interceptor___tls_get_offset, .-__interceptor___tls_get_offset\n"
5373// Assembly wrapper to call REAL(__tls_get_offset)(arg)
5374 ".type __tls_get_offset_wrapper, @function\n"
5375 "__tls_get_offset_wrapper:\n"
5376#ifdef __s390x__
5377 "sgr %r2,%r12\n"
5378#else
5379 "sr %r2,%r12\n"
5380#endif
5381 "br %r3\n"
5382 ".size __tls_get_offset_wrapper, .-__tls_get_offset_wrapper\n"
5383);
5384#endif // SANITIZER_S390
5385#else
5386#define INIT_TLS_GET_ADDR
5387#endif
5388
5389#if SANITIZER_INTERCEPT_LISTXATTR
5390INTERCEPTOR(SSIZE_T, listxattr, const char *path, char *list, SIZE_T size) {
5391 void *ctx;
5392 COMMON_INTERCEPTOR_ENTER(ctx, listxattr, path, list, size);
5393 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
5394 // FIXME: under ASan the call below may write to freed memory and corrupt
5395 // its metadata. See
5396 // https://github.com/google/sanitizers/issues/321.
5397 SSIZE_T res = REAL(listxattr)(path, list, size);
5398 // Here and below, size == 0 is a special case where nothing is written to the
5399 // buffer, and res contains the desired buffer size.
5400 if (size && res > 0 && list) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, res);
5401 return res;
5402}
5403INTERCEPTOR(SSIZE_T, llistxattr, const char *path, char *list, SIZE_T size) {
5404 void *ctx;
5405 COMMON_INTERCEPTOR_ENTER(ctx, llistxattr, path, list, size);
5406 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
5407 // FIXME: under ASan the call below may write to freed memory and corrupt
5408 // its metadata. See
5409 // https://github.com/google/sanitizers/issues/321.
5410 SSIZE_T res = REAL(llistxattr)(path, list, size);
5411 if (size && res > 0 && list) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, res);
5412 return res;
5413}
5414INTERCEPTOR(SSIZE_T, flistxattr, int fd, char *list, SIZE_T size) {
5415 void *ctx;
5416 COMMON_INTERCEPTOR_ENTER(ctx, flistxattr, fd, list, size);
5417 // FIXME: under ASan the call below may write to freed memory and corrupt
5418 // its metadata. See
5419 // https://github.com/google/sanitizers/issues/321.
5420 SSIZE_T res = REAL(flistxattr)(fd, list, size);
5421 if (size && res > 0 && list) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, res);
5422 return res;
5423}
5424#define INIT_LISTXATTR \
5425 COMMON_INTERCEPT_FUNCTION(listxattr); \
5426 COMMON_INTERCEPT_FUNCTION(llistxattr); \
5427 COMMON_INTERCEPT_FUNCTION(flistxattr);
5428#else
5429#define INIT_LISTXATTR
5430#endif
5431
5432#if SANITIZER_INTERCEPT_GETXATTR
5433INTERCEPTOR(SSIZE_T, getxattr, const char *path, const char *name, char *value,
5434 SIZE_T size) {
5435 void *ctx;
5436 COMMON_INTERCEPTOR_ENTER(ctx, getxattr, path, name, value, size);
5437 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
5438 if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
5439 // FIXME: under ASan the call below may write to freed memory and corrupt
5440 // its metadata. See
5441 // https://github.com/google/sanitizers/issues/321.
5442 SSIZE_T res = REAL(getxattr)(path, name, value, size);
5443 if (size && res > 0 && value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, res);
5444 return res;
5445}
5446INTERCEPTOR(SSIZE_T, lgetxattr, const char *path, const char *name, char *value,
5447 SIZE_T size) {
5448 void *ctx;
5449 COMMON_INTERCEPTOR_ENTER(ctx, lgetxattr, path, name, value, size);
5450 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
5451 if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
5452 // FIXME: under ASan the call below may write to freed memory and corrupt
5453 // its metadata. See
5454 // https://github.com/google/sanitizers/issues/321.
5455 SSIZE_T res = REAL(lgetxattr)(path, name, value, size);
5456 if (size && res > 0 && value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, res);
5457 return res;
5458}
5459INTERCEPTOR(SSIZE_T, fgetxattr, int fd, const char *name, char *value,
5460 SIZE_T size) {
5461 void *ctx;
5462 COMMON_INTERCEPTOR_ENTER(ctx, fgetxattr, fd, name, value, size);
5463 if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
5464 // FIXME: under ASan the call below may write to freed memory and corrupt
5465 // its metadata. See
5466 // https://github.com/google/sanitizers/issues/321.
5467 SSIZE_T res = REAL(fgetxattr)(fd, name, value, size);
5468 if (size && res > 0 && value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, res);
5469 return res;
5470}
5471#define INIT_GETXATTR \
5472 COMMON_INTERCEPT_FUNCTION(getxattr); \
5473 COMMON_INTERCEPT_FUNCTION(lgetxattr); \
5474 COMMON_INTERCEPT_FUNCTION(fgetxattr);
5475#else
5476#define INIT_GETXATTR
5477#endif
5478
5479#if SANITIZER_INTERCEPT_GETRESID
5480INTERCEPTOR(int, getresuid, void *ruid, void *euid, void *suid) {
5481 void *ctx;
5482 COMMON_INTERCEPTOR_ENTER(ctx, getresuid, ruid, euid, suid);
5483 // FIXME: under ASan the call below may write to freed memory and corrupt
5484 // its metadata. See
5485 // https://github.com/google/sanitizers/issues/321.
5486 int res = REAL(getresuid)(ruid, euid, suid);
5487 if (res >= 0) {
5488 if (ruid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ruid, uid_t_sz);
5489 if (euid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, euid, uid_t_sz);
5490 if (suid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, suid, uid_t_sz);
5491 }
5492 return res;
5493}
5494INTERCEPTOR(int, getresgid, void *rgid, void *egid, void *sgid) {
5495 void *ctx;
5496 COMMON_INTERCEPTOR_ENTER(ctx, getresgid, rgid, egid, sgid);
5497 // FIXME: under ASan the call below may write to freed memory and corrupt
5498 // its metadata. See
5499 // https://github.com/google/sanitizers/issues/321.
5500 int res = REAL(getresgid)(rgid, egid, sgid);
5501 if (res >= 0) {
5502 if (rgid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rgid, gid_t_sz);
5503 if (egid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, egid, gid_t_sz);
5504 if (sgid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sgid, gid_t_sz);
5505 }
5506 return res;
5507}
5508#define INIT_GETRESID \
5509 COMMON_INTERCEPT_FUNCTION(getresuid); \
5510 COMMON_INTERCEPT_FUNCTION(getresgid);
5511#else
5512#define INIT_GETRESID
5513#endif
5514
5515#if SANITIZER_INTERCEPT_GETIFADDRS
5516// As long as getifaddrs()/freeifaddrs() use calloc()/free(), we don't need to
5517// intercept freeifaddrs(). If that ceases to be the case, we might need to
5518// intercept it to poison the memory again.
5519INTERCEPTOR(int, getifaddrs, __sanitizer_ifaddrs **ifap) {
5520 void *ctx;
5521 COMMON_INTERCEPTOR_ENTER(ctx, getifaddrs, ifap);
5522 // FIXME: under ASan the call below may write to freed memory and corrupt
5523 // its metadata. See
5524 // https://github.com/google/sanitizers/issues/321.
5525 int res = REAL(getifaddrs)(ifap);
5526 if (res == 0 && ifap) {
5527 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ifap, sizeof(void *));
5528 __sanitizer_ifaddrs *p = *ifap;
5529 while (p) {
5530 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(__sanitizer_ifaddrs));
5531 if (p->ifa_name)
5532 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_name,
5533 REAL(strlen)(p->ifa_name) + 1);
5534 if (p->ifa_addr)
5535 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_addr, struct_sockaddr_sz);
5536 if (p->ifa_netmask)
5537 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_netmask, struct_sockaddr_sz);
5538 // On Linux this is a union, but the other member also points to a
5539 // struct sockaddr, so the following is sufficient.
5540 if (p->ifa_dstaddr)
5541 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_dstaddr, struct_sockaddr_sz);
5542 // FIXME(smatveev): Unpoison p->ifa_data as well.
5543 p = p->ifa_next;
5544 }
5545 }
5546 return res;
5547}
5548#define INIT_GETIFADDRS \
5549 COMMON_INTERCEPT_FUNCTION(getifaddrs);
5550#else
5551#define INIT_GETIFADDRS
5552#endif
5553
5554#if SANITIZER_INTERCEPT_IF_INDEXTONAME
5555INTERCEPTOR(char *, if_indextoname, unsigned int ifindex, char* ifname) {
5556 void *ctx;
5557 COMMON_INTERCEPTOR_ENTER(ctx, if_indextoname, ifindex, ifname);
5558 // FIXME: under ASan the call below may write to freed memory and corrupt
5559 // its metadata. See
5560 // https://github.com/google/sanitizers/issues/321.
5561 char *res = REAL(if_indextoname)(ifindex, ifname);
5562 if (res && ifname)
5563 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ifname, REAL(strlen)(ifname) + 1);
5564 return res;
5565}
5566INTERCEPTOR(unsigned int, if_nametoindex, const char* ifname) {
5567 void *ctx;
5568 COMMON_INTERCEPTOR_ENTER(ctx, if_nametoindex, ifname);
5569 if (ifname)
5570 COMMON_INTERCEPTOR_READ_RANGE(ctx, ifname, REAL(strlen)(ifname) + 1);
5571 return REAL(if_nametoindex)(ifname);
5572}
5573#define INIT_IF_INDEXTONAME \
5574 COMMON_INTERCEPT_FUNCTION(if_indextoname); \
5575 COMMON_INTERCEPT_FUNCTION(if_nametoindex);
5576#else
5577#define INIT_IF_INDEXTONAME
5578#endif
5579
5580#if SANITIZER_INTERCEPT_CAPGET
5581INTERCEPTOR(int, capget, void *hdrp, void *datap) {
5582 void *ctx;
5583 COMMON_INTERCEPTOR_ENTER(ctx, capget, hdrp, datap);
5584 if (hdrp)
5585 COMMON_INTERCEPTOR_READ_RANGE(ctx, hdrp, __user_cap_header_struct_sz);
5586 // FIXME: under ASan the call below may write to freed memory and corrupt
5587 // its metadata. See
5588 // https://github.com/google/sanitizers/issues/321.
5589 int res = REAL(capget)(hdrp, datap);
5590 if (res == 0 && datap)
5591 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, datap, __user_cap_data_struct_sz);
5592 // We can also return -1 and write to hdrp->version if the version passed in
5593 // hdrp->version is unsupported. But that's not a trivial condition to check,
5594 // and anyway COMMON_INTERCEPTOR_READ_RANGE protects us to some extent.
5595 return res;
5596}
5597INTERCEPTOR(int, capset, void *hdrp, const void *datap) {
5598 void *ctx;
5599 COMMON_INTERCEPTOR_ENTER(ctx, capset, hdrp, datap);
5600 if (hdrp)
5601 COMMON_INTERCEPTOR_READ_RANGE(ctx, hdrp, __user_cap_header_struct_sz);
5602 if (datap)
5603 COMMON_INTERCEPTOR_READ_RANGE(ctx, datap, __user_cap_data_struct_sz);
5604 return REAL(capset)(hdrp, datap);
5605}
5606#define INIT_CAPGET \
5607 COMMON_INTERCEPT_FUNCTION(capget); \
5608 COMMON_INTERCEPT_FUNCTION(capset);
5609#else
5610#define INIT_CAPGET
5611#endif
5612
5613#if SANITIZER_INTERCEPT_AEABI_MEM
5614INTERCEPTOR(void *, __aeabi_memmove, void *to, const void *from, uptr size) {
5615 void *ctx;
5616 COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size);
5617}
5618
5619INTERCEPTOR(void *, __aeabi_memmove4, void *to, const void *from, uptr size) {
5620 void *ctx;
5621 COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size);
5622}
5623
5624INTERCEPTOR(void *, __aeabi_memmove8, void *to, const void *from, uptr size) {
5625 void *ctx;
5626 COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size);
5627}
5628
5629INTERCEPTOR(void *, __aeabi_memcpy, void *to, const void *from, uptr size) {
5630 void *ctx;
5631 COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size);
5632}
5633
5634INTERCEPTOR(void *, __aeabi_memcpy4, void *to, const void *from, uptr size) {
5635 void *ctx;
5636 COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size);
5637}
5638
5639INTERCEPTOR(void *, __aeabi_memcpy8, void *to, const void *from, uptr size) {
5640 void *ctx;
5641 COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size);
5642}
5643
5644// Note the argument order.
5645INTERCEPTOR(void *, __aeabi_memset, void *block, uptr size, int c) {
5646 void *ctx;
5647 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size);
5648}
5649
5650INTERCEPTOR(void *, __aeabi_memset4, void *block, uptr size, int c) {
5651 void *ctx;
5652 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size);
5653}
5654
5655INTERCEPTOR(void *, __aeabi_memset8, void *block, uptr size, int c) {
5656 void *ctx;
5657 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size);
5658}
5659
5660INTERCEPTOR(void *, __aeabi_memclr, void *block, uptr size) {
5661 void *ctx;
5662 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size);
5663}
5664
5665INTERCEPTOR(void *, __aeabi_memclr4, void *block, uptr size) {
5666 void *ctx;
5667 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size);
5668}
5669
5670INTERCEPTOR(void *, __aeabi_memclr8, void *block, uptr size) {
5671 void *ctx;
5672 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size);
5673}
5674
5675#define INIT_AEABI_MEM \
5676 COMMON_INTERCEPT_FUNCTION(__aeabi_memmove); \
5677 COMMON_INTERCEPT_FUNCTION(__aeabi_memmove4); \
5678 COMMON_INTERCEPT_FUNCTION(__aeabi_memmove8); \
5679 COMMON_INTERCEPT_FUNCTION(__aeabi_memcpy); \
5680 COMMON_INTERCEPT_FUNCTION(__aeabi_memcpy4); \
5681 COMMON_INTERCEPT_FUNCTION(__aeabi_memcpy8); \
5682 COMMON_INTERCEPT_FUNCTION(__aeabi_memset); \
5683 COMMON_INTERCEPT_FUNCTION(__aeabi_memset4); \
5684 COMMON_INTERCEPT_FUNCTION(__aeabi_memset8); \
5685 COMMON_INTERCEPT_FUNCTION(__aeabi_memclr); \
5686 COMMON_INTERCEPT_FUNCTION(__aeabi_memclr4); \
5687 COMMON_INTERCEPT_FUNCTION(__aeabi_memclr8);
5688#else
5689#define INIT_AEABI_MEM
5690#endif // SANITIZER_INTERCEPT_AEABI_MEM
5691
5692#if SANITIZER_INTERCEPT___BZERO
5693INTERCEPTOR(void *, __bzero, void *block, uptr size) {
5694 void *ctx;
5695 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size);
5696}
5697#define INIT___BZERO COMMON_INTERCEPT_FUNCTION(__bzero);
5698#else
5699#define INIT___BZERO
5700#endif // SANITIZER_INTERCEPT___BZERO
5701
5702#if SANITIZER_INTERCEPT_BZERO
5703INTERCEPTOR(void *, bzero, void *block, uptr size) {
5704 void *ctx;
5705 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size);
5706}
5707#define INIT_BZERO COMMON_INTERCEPT_FUNCTION(bzero);
5708#else
5709#define INIT_BZERO
5710#endif // SANITIZER_INTERCEPT_BZERO
5711
5712#if SANITIZER_INTERCEPT_FTIME
5713INTERCEPTOR(int, ftime, __sanitizer_timeb *tp) {
5714 void *ctx;
5715 COMMON_INTERCEPTOR_ENTER(ctx, ftime, tp);
5716 // FIXME: under ASan the call below may write to freed memory and corrupt
5717 // its metadata. See
5718 // https://github.com/google/sanitizers/issues/321.
5719 int res = REAL(ftime)(tp);
5720 if (tp)
5721 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tp, sizeof(*tp));
5722 return res;
5723}
5724#define INIT_FTIME COMMON_INTERCEPT_FUNCTION(ftime);
5725#else
5726#define INIT_FTIME
5727#endif // SANITIZER_INTERCEPT_FTIME
5728
5729#if SANITIZER_INTERCEPT_XDR
5730INTERCEPTOR(void, xdrmem_create, __sanitizer_XDR *xdrs, uptr addr,
5731 unsigned size, int op) {
5732 void *ctx;
5733 COMMON_INTERCEPTOR_ENTER(ctx, xdrmem_create, xdrs, addr, size, op);
5734 // FIXME: under ASan the call below may write to freed memory and corrupt
5735 // its metadata. See
5736 // https://github.com/google/sanitizers/issues/321.
5737 REAL(xdrmem_create)(xdrs, addr, size, op);
5738 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, xdrs, sizeof(*xdrs));
5739 if (op == __sanitizer_XDR_ENCODE) {
5740 // It's not obvious how much data individual xdr_ routines write.
5741 // Simply unpoison the entire target buffer in advance.
5742 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, (void *)addr, size);
5743 }
5744}
5745
5746INTERCEPTOR(void, xdrstdio_create, __sanitizer_XDR *xdrs, void *file, int op) {
5747 void *ctx;
5748 COMMON_INTERCEPTOR_ENTER(ctx, xdrstdio_create, xdrs, file, op);
5749 // FIXME: under ASan the call below may write to freed memory and corrupt
5750 // its metadata. See
5751 // https://github.com/google/sanitizers/issues/321.
5752 REAL(xdrstdio_create)(xdrs, file, op);
5753 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, xdrs, sizeof(*xdrs));
5754}
5755
5756// FIXME: under ASan the call below may write to freed memory and corrupt
5757// its metadata. See
5758// https://github.com/google/sanitizers/issues/321.
5759#define XDR_INTERCEPTOR(F, T) \
5760 INTERCEPTOR(int, F, __sanitizer_XDR *xdrs, T *p) { \
5761 void *ctx; \
5762 COMMON_INTERCEPTOR_ENTER(ctx, F, xdrs, p); \
5763 if (p && xdrs->x_op == __sanitizer_XDR_ENCODE) \
5764 COMMON_INTERCEPTOR_READ_RANGE(ctx, p, sizeof(*p)); \
5765 int res = REAL(F)(xdrs, p); \
5766 if (res && p && xdrs->x_op == __sanitizer_XDR_DECODE) \
5767 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); \
5768 return res; \
5769 }
5770
5771XDR_INTERCEPTOR(xdr_short, short)
5772XDR_INTERCEPTOR(xdr_u_short, unsigned short)
5773XDR_INTERCEPTOR(xdr_int, int)
5774XDR_INTERCEPTOR(xdr_u_int, unsigned)
5775XDR_INTERCEPTOR(xdr_long, long)
5776XDR_INTERCEPTOR(xdr_u_long, unsigned long)
5777XDR_INTERCEPTOR(xdr_hyper, long long)
5778XDR_INTERCEPTOR(xdr_u_hyper, unsigned long long)
5779XDR_INTERCEPTOR(xdr_longlong_t, long long)
5780XDR_INTERCEPTOR(xdr_u_longlong_t, unsigned long long)
5781XDR_INTERCEPTOR(xdr_int8_t, u8)
5782XDR_INTERCEPTOR(xdr_uint8_t, u8)
5783XDR_INTERCEPTOR(xdr_int16_t, u16)
5784XDR_INTERCEPTOR(xdr_uint16_t, u16)
5785XDR_INTERCEPTOR(xdr_int32_t, u32)
5786XDR_INTERCEPTOR(xdr_uint32_t, u32)
5787XDR_INTERCEPTOR(xdr_int64_t, u64)
5788XDR_INTERCEPTOR(xdr_uint64_t, u64)
5789XDR_INTERCEPTOR(xdr_quad_t, long long)
5790XDR_INTERCEPTOR(xdr_u_quad_t, unsigned long long)
5791XDR_INTERCEPTOR(xdr_bool, bool)
5792XDR_INTERCEPTOR(xdr_enum, int)
5793XDR_INTERCEPTOR(xdr_char, char)
5794XDR_INTERCEPTOR(xdr_u_char, unsigned char)
5795XDR_INTERCEPTOR(xdr_float, float)
5796XDR_INTERCEPTOR(xdr_double, double)
5797
5798// FIXME: intercept xdr_array, opaque, union, vector, reference, pointer,
5799// wrapstring, sizeof
5800
5801INTERCEPTOR(int, xdr_bytes, __sanitizer_XDR *xdrs, char **p, unsigned *sizep,
5802 unsigned maxsize) {
5803 void *ctx;
5804 COMMON_INTERCEPTOR_ENTER(ctx, xdr_bytes, xdrs, p, sizep, maxsize);
5805 if (p && sizep && xdrs->x_op == __sanitizer_XDR_ENCODE) {
5806 COMMON_INTERCEPTOR_READ_RANGE(ctx, p, sizeof(*p));
5807 COMMON_INTERCEPTOR_READ_RANGE(ctx, sizep, sizeof(*sizep));
5808 COMMON_INTERCEPTOR_READ_RANGE(ctx, *p, *sizep);
5809 }
5810 // FIXME: under ASan the call below may write to freed memory and corrupt
5811 // its metadata. See
5812 // https://github.com/google/sanitizers/issues/321.
5813 int res = REAL(xdr_bytes)(xdrs, p, sizep, maxsize);
5814 if (p && sizep && xdrs->x_op == __sanitizer_XDR_DECODE) {
5815 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
5816 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sizep, sizeof(*sizep));
5817 if (res && *p && *sizep) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, *sizep);
5818 }
5819 return res;
5820}
5821
5822INTERCEPTOR(int, xdr_string, __sanitizer_XDR *xdrs, char **p,
5823 unsigned maxsize) {
5824 void *ctx;
5825 COMMON_INTERCEPTOR_ENTER(ctx, xdr_string, xdrs, p, maxsize);
5826 if (p && xdrs->x_op == __sanitizer_XDR_ENCODE) {
5827 COMMON_INTERCEPTOR_READ_RANGE(ctx, p, sizeof(*p));
5828 COMMON_INTERCEPTOR_READ_RANGE(ctx, *p, REAL(strlen)(*p) + 1);
5829 }
5830 // FIXME: under ASan the call below may write to freed memory and corrupt
5831 // its metadata. See
5832 // https://github.com/google/sanitizers/issues/321.
5833 int res = REAL(xdr_string)(xdrs, p, maxsize);
5834 if (p && xdrs->x_op == __sanitizer_XDR_DECODE) {
5835 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
5836 if (res && *p)
5837 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, REAL(strlen)(*p) + 1);
5838 }
5839 return res;
5840}
5841
5842#define INIT_XDR \
5843 COMMON_INTERCEPT_FUNCTION(xdrmem_create); \
5844 COMMON_INTERCEPT_FUNCTION(xdrstdio_create); \
5845 COMMON_INTERCEPT_FUNCTION(xdr_short); \
5846 COMMON_INTERCEPT_FUNCTION(xdr_u_short); \
5847 COMMON_INTERCEPT_FUNCTION(xdr_int); \
5848 COMMON_INTERCEPT_FUNCTION(xdr_u_int); \
5849 COMMON_INTERCEPT_FUNCTION(xdr_long); \
5850 COMMON_INTERCEPT_FUNCTION(xdr_u_long); \
5851 COMMON_INTERCEPT_FUNCTION(xdr_hyper); \
5852 COMMON_INTERCEPT_FUNCTION(xdr_u_hyper); \
5853 COMMON_INTERCEPT_FUNCTION(xdr_longlong_t); \
5854 COMMON_INTERCEPT_FUNCTION(xdr_u_longlong_t); \
5855 COMMON_INTERCEPT_FUNCTION(xdr_int8_t); \
5856 COMMON_INTERCEPT_FUNCTION(xdr_uint8_t); \
5857 COMMON_INTERCEPT_FUNCTION(xdr_int16_t); \
5858 COMMON_INTERCEPT_FUNCTION(xdr_uint16_t); \
5859 COMMON_INTERCEPT_FUNCTION(xdr_int32_t); \
5860 COMMON_INTERCEPT_FUNCTION(xdr_uint32_t); \
5861 COMMON_INTERCEPT_FUNCTION(xdr_int64_t); \
5862 COMMON_INTERCEPT_FUNCTION(xdr_uint64_t); \
5863 COMMON_INTERCEPT_FUNCTION(xdr_quad_t); \
5864 COMMON_INTERCEPT_FUNCTION(xdr_u_quad_t); \
5865 COMMON_INTERCEPT_FUNCTION(xdr_bool); \
5866 COMMON_INTERCEPT_FUNCTION(xdr_enum); \
5867 COMMON_INTERCEPT_FUNCTION(xdr_char); \
5868 COMMON_INTERCEPT_FUNCTION(xdr_u_char); \
5869 COMMON_INTERCEPT_FUNCTION(xdr_float); \
5870 COMMON_INTERCEPT_FUNCTION(xdr_double); \
5871 COMMON_INTERCEPT_FUNCTION(xdr_bytes); \
5872 COMMON_INTERCEPT_FUNCTION(xdr_string);
5873#else
5874#define INIT_XDR
5875#endif // SANITIZER_INTERCEPT_XDR
5876
5877#if SANITIZER_INTERCEPT_XDRREC
5878typedef int (*xdrrec_cb)(char*, char*, int);
5879struct XdrRecWrapper {
5880 char *handle;
5881 xdrrec_cb rd, wr;
5882};
5883typedef AddrHashMap<XdrRecWrapper *, 11> XdrRecWrapMap;
5884static XdrRecWrapMap *xdrrec_wrap_map;
5885
5886static int xdrrec_wr_wrap(char *handle, char *buf, int count) {
5887 COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
5888 COMMON_INTERCEPTOR_INITIALIZE_RANGE(buf, count);
5889 XdrRecWrapper *wrap = (XdrRecWrapper *)handle;
5890 return wrap->wr(wrap->handle, buf, count);
5891}
5892
5893static int xdrrec_rd_wrap(char *handle, char *buf, int count) {
5894 COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
5895 XdrRecWrapper *wrap = (XdrRecWrapper *)handle;
5896 return wrap->rd(wrap->handle, buf, count);
5897}
5898
5899// This doesn't apply to the solaris version as it has a different function
5900// signature.
5901INTERCEPTOR(void, xdrrec_create, __sanitizer_XDR *xdr, unsigned sndsize,
5902 unsigned rcvsize, char *handle, int (*rd)(char*, char*, int),
5903 int (*wr)(char*, char*, int)) {
5904 void *ctx;
5905 COMMON_INTERCEPTOR_ENTER(ctx, xdrrec_create, xdr, sndsize, rcvsize,
5906 handle, rd, wr);
5907 COMMON_INTERCEPTOR_READ_RANGE(ctx, &xdr->x_op, sizeof xdr->x_op);
5908
5909 // We can't allocate a wrapper on the stack, as the handle is used outside
5910 // this stack frame. So we put it on the heap, and keep track of it with
5911 // the HashMap (keyed by x_private). When we later need to xdr_destroy,
5912 // we can index the map, free the wrapper, and then clean the map entry.
5913 XdrRecWrapper *wrap_data =
5914 (XdrRecWrapper *)InternalAlloc(sizeof(XdrRecWrapper));
5915 wrap_data->handle = handle;
5916 wrap_data->rd = rd;
5917 wrap_data->wr = wr;
5918 if (wr)
5919 wr = xdrrec_wr_wrap;
5920 if (rd)
5921 rd = xdrrec_rd_wrap;
5922 handle = (char *)wrap_data;
5923
5924 REAL(xdrrec_create)(xdr, sndsize, rcvsize, handle, rd, wr);
5925 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, xdr, sizeof *xdr);
5926
5927 XdrRecWrapMap::Handle wrap(xdrrec_wrap_map, xdr->x_private, false, true);
5928 *wrap = wrap_data;
5929}
5930
5931// We have to intercept this to be able to free wrapper memory;
5932// otherwise it's not necessary.
5933INTERCEPTOR(void, xdr_destroy, __sanitizer_XDR *xdr) {
5934 void *ctx;
5935 COMMON_INTERCEPTOR_ENTER(ctx, xdr_destroy, xdr);
5936
5937 XdrRecWrapMap::Handle wrap(xdrrec_wrap_map, xdr->x_private, true);
5938 InternalFree(*wrap);
5939 REAL(xdr_destroy)(xdr);
5940}
5941#define INIT_XDRREC_LINUX \
5942 static u64 xdrrec_wrap_mem[sizeof(XdrRecWrapMap) / sizeof(u64) + 1]; \
5943 xdrrec_wrap_map = new ((void *)&xdrrec_wrap_mem) XdrRecWrapMap(); \
5944 COMMON_INTERCEPT_FUNCTION(xdrrec_create); \
5945 COMMON_INTERCEPT_FUNCTION(xdr_destroy);
5946#else
5947#define INIT_XDRREC_LINUX
5948#endif
5949
5950#if SANITIZER_INTERCEPT_TSEARCH
5951INTERCEPTOR(void *, tsearch, void *key, void **rootp,
5952 int (*compar)(const void *, const void *)) {
5953 void *ctx;
5954 COMMON_INTERCEPTOR_ENTER(ctx, tsearch, key, rootp, compar);
5955 // FIXME: under ASan the call below may write to freed memory and corrupt
5956 // its metadata. See
5957 // https://github.com/google/sanitizers/issues/321.
5958 void *res = REAL(tsearch)(key, rootp, compar);
5959 if (res && *(void **)res == key)
5960 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, sizeof(void *));
5961 return res;
5962}
5963#define INIT_TSEARCH COMMON_INTERCEPT_FUNCTION(tsearch);
5964#else
5965#define INIT_TSEARCH
5966#endif
5967
5968#if SANITIZER_INTERCEPT_LIBIO_INTERNALS || SANITIZER_INTERCEPT_FOPEN || \
5969 SANITIZER_INTERCEPT_OPEN_MEMSTREAM
5970void unpoison_file(__sanitizer_FILE *fp) {
5971#if SANITIZER_HAS_STRUCT_FILE
5972 COMMON_INTERCEPTOR_INITIALIZE_RANGE(fp, sizeof(*fp));
5973#if SANITIZER_NETBSD
5974 if (fp->_bf._base && fp->_bf._size > 0)
5975 COMMON_INTERCEPTOR_INITIALIZE_RANGE(fp->_bf._base,
5976 fp->_bf._size);
5977#else
5978 if (fp->_IO_read_base && fp->_IO_read_base < fp->_IO_read_end)
5979 COMMON_INTERCEPTOR_INITIALIZE_RANGE(fp->_IO_read_base,
5980 fp->_IO_read_end - fp->_IO_read_base);
5981 if (fp->_IO_write_base && fp->_IO_write_base < fp->_IO_write_end)
5982 COMMON_INTERCEPTOR_INITIALIZE_RANGE(fp->_IO_write_base,
5983 fp->_IO_write_end - fp->_IO_write_base);
5984#endif
5985#endif // SANITIZER_HAS_STRUCT_FILE
5986}
5987#endif
5988
5989#if SANITIZER_INTERCEPT_LIBIO_INTERNALS
5990// These guys are called when a .c source is built with -O2.
5991INTERCEPTOR(int, __uflow, __sanitizer_FILE *fp) {
5992 void *ctx;
5993 COMMON_INTERCEPTOR_ENTER(ctx, __uflow, fp);
5994 int res = REAL(__uflow)(fp);
5995 unpoison_file(fp);
5996 return res;
5997}
5998INTERCEPTOR(int, __underflow, __sanitizer_FILE *fp) {
5999 void *ctx;
6000 COMMON_INTERCEPTOR_ENTER(ctx, __underflow, fp);
6001 int res = REAL(__underflow)(fp);
6002 unpoison_file(fp);
6003 return res;
6004}
6005INTERCEPTOR(int, __overflow, __sanitizer_FILE *fp, int ch) {
6006 void *ctx;
6007 COMMON_INTERCEPTOR_ENTER(ctx, __overflow, fp, ch);
6008 int res = REAL(__overflow)(fp, ch);
6009 unpoison_file(fp);
6010 return res;
6011}
6012INTERCEPTOR(int, __wuflow, __sanitizer_FILE *fp) {
6013 void *ctx;
6014 COMMON_INTERCEPTOR_ENTER(ctx, __wuflow, fp);
6015 int res = REAL(__wuflow)(fp);
6016 unpoison_file(fp);
6017 return res;
6018}
6019INTERCEPTOR(int, __wunderflow, __sanitizer_FILE *fp) {
6020 void *ctx;
6021 COMMON_INTERCEPTOR_ENTER(ctx, __wunderflow, fp);
6022 int res = REAL(__wunderflow)(fp);
6023 unpoison_file(fp);
6024 return res;
6025}
6026INTERCEPTOR(int, __woverflow, __sanitizer_FILE *fp, int ch) {
6027 void *ctx;
6028 COMMON_INTERCEPTOR_ENTER(ctx, __woverflow, fp, ch);
6029 int res = REAL(__woverflow)(fp, ch);
6030 unpoison_file(fp);
6031 return res;
6032}
6033#define INIT_LIBIO_INTERNALS \
6034 COMMON_INTERCEPT_FUNCTION(__uflow); \
6035 COMMON_INTERCEPT_FUNCTION(__underflow); \
6036 COMMON_INTERCEPT_FUNCTION(__overflow); \
6037 COMMON_INTERCEPT_FUNCTION(__wuflow); \
6038 COMMON_INTERCEPT_FUNCTION(__wunderflow); \
6039 COMMON_INTERCEPT_FUNCTION(__woverflow);
6040#else
6041#define INIT_LIBIO_INTERNALS
6042#endif
6043
6044#if SANITIZER_INTERCEPT_FOPEN
6045INTERCEPTOR(__sanitizer_FILE *, fopen, const char *path, const char *mode) {
6046 void *ctx;
6047 COMMON_INTERCEPTOR_ENTER(ctx, fopen, path, mode);
6048 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
6049 COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1);
6050 __sanitizer_FILE *res = REAL(fopen)(path, mode);
6051 COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path);
6052 if (res) unpoison_file(res);
6053 return res;
6054}
6055INTERCEPTOR(__sanitizer_FILE *, fdopen, int fd, const char *mode) {
6056 void *ctx;
6057 COMMON_INTERCEPTOR_ENTER(ctx, fdopen, fd, mode);
6058 COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1);
6059 __sanitizer_FILE *res = REAL(fdopen)(fd, mode);
6060 if (res) unpoison_file(res);
6061 return res;
6062}
6063INTERCEPTOR(__sanitizer_FILE *, freopen, const char *path, const char *mode,
6064 __sanitizer_FILE *fp) {
6065 void *ctx;
6066 COMMON_INTERCEPTOR_ENTER(ctx, freopen, path, mode, fp);
6067 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
6068 COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1);
6069 COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp);
6070 __sanitizer_FILE *res = REAL(freopen)(path, mode, fp);
6071 COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path);
6072 if (res) unpoison_file(res);
6073 return res;
6074}
6075#define INIT_FOPEN \
6076 COMMON_INTERCEPT_FUNCTION(fopen); \
6077 COMMON_INTERCEPT_FUNCTION(fdopen); \
6078 COMMON_INTERCEPT_FUNCTION(freopen);
6079#else
6080#define INIT_FOPEN
6081#endif
6082
6083#if SANITIZER_INTERCEPT_FOPEN64
6084INTERCEPTOR(__sanitizer_FILE *, fopen64, const char *path, const char *mode) {
6085 void *ctx;
6086 COMMON_INTERCEPTOR_ENTER(ctx, fopen64, path, mode);
6087 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
6088 COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1);
6089 __sanitizer_FILE *res = REAL(fopen64)(path, mode);
6090 COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path);
6091 if (res) unpoison_file(res);
6092 return res;
6093}
6094INTERCEPTOR(__sanitizer_FILE *, freopen64, const char *path, const char *mode,
6095 __sanitizer_FILE *fp) {
6096 void *ctx;
6097 COMMON_INTERCEPTOR_ENTER(ctx, freopen64, path, mode, fp);
6098 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
6099 COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1);
6100 COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp);
6101 __sanitizer_FILE *res = REAL(freopen64)(path, mode, fp);
6102 COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path);
6103 if (res) unpoison_file(res);
6104 return res;
6105}
6106#define INIT_FOPEN64 \
6107 COMMON_INTERCEPT_FUNCTION(fopen64); \
6108 COMMON_INTERCEPT_FUNCTION(freopen64);
6109#else
6110#define INIT_FOPEN64
6111#endif
6112
6113#if SANITIZER_INTERCEPT_OPEN_MEMSTREAM
6114INTERCEPTOR(__sanitizer_FILE *, open_memstream, char **ptr, SIZE_T *sizeloc) {
6115 void *ctx;
6116 COMMON_INTERCEPTOR_ENTER(ctx, open_memstream, ptr, sizeloc);
6117 // FIXME: under ASan the call below may write to freed memory and corrupt
6118 // its metadata. See
6119 // https://github.com/google/sanitizers/issues/321.
6120 __sanitizer_FILE *res = REAL(open_memstream)(ptr, sizeloc);
6121 if (res) {
6122 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, sizeof(*ptr));
6123 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sizeloc, sizeof(*sizeloc));
6124 unpoison_file(res);
6125 FileMetadata file = {ptr, sizeloc};
6126 SetInterceptorMetadata(res, file);
6127 }
6128 return res;
6129}
6130INTERCEPTOR(__sanitizer_FILE *, open_wmemstream, wchar_t **ptr,
6131 SIZE_T *sizeloc) {
6132 void *ctx;
6133 COMMON_INTERCEPTOR_ENTER(ctx, open_wmemstream, ptr, sizeloc);
6134 __sanitizer_FILE *res = REAL(open_wmemstream)(ptr, sizeloc);
6135 if (res) {
6136 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, sizeof(*ptr));
6137 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sizeloc, sizeof(*sizeloc));
6138 unpoison_file(res);
6139 FileMetadata file = {(char **)ptr, sizeloc};
6140 SetInterceptorMetadata(res, file);
6141 }
6142 return res;
6143}
6144INTERCEPTOR(__sanitizer_FILE *, fmemopen, void *buf, SIZE_T size,
6145 const char *mode) {
6146 void *ctx;
6147 COMMON_INTERCEPTOR_ENTER(ctx, fmemopen, buf, size, mode);
6148 // FIXME: under ASan the call below may write to freed memory and corrupt
6149 // its metadata. See
6150 // https://github.com/google/sanitizers/issues/321.
6151 __sanitizer_FILE *res = REAL(fmemopen)(buf, size, mode);
6152 if (res) unpoison_file(res);
6153 return res;
6154}
6155#define INIT_OPEN_MEMSTREAM \
6156 COMMON_INTERCEPT_FUNCTION(open_memstream); \
6157 COMMON_INTERCEPT_FUNCTION(open_wmemstream); \
6158 COMMON_INTERCEPT_FUNCTION(fmemopen);
6159#else
6160#define INIT_OPEN_MEMSTREAM
6161#endif
6162
6163#if SANITIZER_INTERCEPT_OBSTACK
6164static void initialize_obstack(__sanitizer_obstack *obstack) {
6165 COMMON_INTERCEPTOR_INITIALIZE_RANGE(obstack, sizeof(*obstack));
6166 if (obstack->chunk)
6167 COMMON_INTERCEPTOR_INITIALIZE_RANGE(obstack->chunk,
6168 sizeof(*obstack->chunk));
6169}
6170
6171INTERCEPTOR(int, _obstack_begin_1, __sanitizer_obstack *obstack, int sz,
6172 int align, void *(*alloc_fn)(uptr arg, uptr sz),
6173 void (*free_fn)(uptr arg, void *p)) {
6174 void *ctx;
6175 COMMON_INTERCEPTOR_ENTER(ctx, _obstack_begin_1, obstack, sz, align, alloc_fn,
6176 free_fn);
6177 int res = REAL(_obstack_begin_1)(obstack, sz, align, alloc_fn, free_fn);
6178 if (res) initialize_obstack(obstack);
6179 return res;
6180}
6181INTERCEPTOR(int, _obstack_begin, __sanitizer_obstack *obstack, int sz,
6182 int align, void *(*alloc_fn)(uptr sz), void (*free_fn)(void *p)) {
6183 void *ctx;
6184 COMMON_INTERCEPTOR_ENTER(ctx, _obstack_begin, obstack, sz, align, alloc_fn,
6185 free_fn);
6186 int res = REAL(_obstack_begin)(obstack, sz, align, alloc_fn, free_fn);
6187 if (res) initialize_obstack(obstack);
6188 return res;
6189}
6190INTERCEPTOR(void, _obstack_newchunk, __sanitizer_obstack *obstack, int length) {
6191 void *ctx;
6192 COMMON_INTERCEPTOR_ENTER(ctx, _obstack_newchunk, obstack, length);
6193 REAL(_obstack_newchunk)(obstack, length);
6194 if (obstack->chunk)
6195 COMMON_INTERCEPTOR_INITIALIZE_RANGE(
6196 obstack->chunk, obstack->next_free - (char *)obstack->chunk);
6197}
6198#define INIT_OBSTACK \
6199 COMMON_INTERCEPT_FUNCTION(_obstack_begin_1); \
6200 COMMON_INTERCEPT_FUNCTION(_obstack_begin); \
6201 COMMON_INTERCEPT_FUNCTION(_obstack_newchunk);
6202#else
6203#define INIT_OBSTACK
6204#endif
6205
6206#if SANITIZER_INTERCEPT_FFLUSH
6207INTERCEPTOR(int, fflush, __sanitizer_FILE *fp) {
6208 void *ctx;
6209 COMMON_INTERCEPTOR_ENTER(ctx, fflush, fp);
6210 if (fp)
6211 unpoison_file(fp);
6212 int res = REAL(fflush)(fp);
6213 // FIXME: handle fp == NULL
6214 if (fp) {
6215 const FileMetadata *m = GetInterceptorMetadata(fp);
6216 if (m) COMMON_INTERCEPTOR_INITIALIZE_RANGE(*m->addr, *m->size);
6217 }
6218 return res;
6219}
6220#define INIT_FFLUSH COMMON_INTERCEPT_FUNCTION(fflush);
6221#else
6222#define INIT_FFLUSH
6223#endif
6224
6225#if SANITIZER_INTERCEPT_FCLOSE
6226INTERCEPTOR(int, fclose, __sanitizer_FILE *fp) {
6227 void *ctx;
6228 COMMON_INTERCEPTOR_ENTER(ctx, fclose, fp);
6229 COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp);
6230 const FileMetadata *m = GetInterceptorMetadata(fp);
6231 if (fp)
6232 unpoison_file(fp);
6233 int res = REAL(fclose)(fp);
6234 if (m) {
6235 COMMON_INTERCEPTOR_INITIALIZE_RANGE(*m->addr, *m->size);
6236 DeleteInterceptorMetadata(fp);
6237 }
6238 return res;
6239}
6240#define INIT_FCLOSE COMMON_INTERCEPT_FUNCTION(fclose);
6241#else
6242#define INIT_FCLOSE
6243#endif
6244
6245#if SANITIZER_INTERCEPT_DLOPEN_DLCLOSE
6246INTERCEPTOR(void*, dlopen, const char *filename, int flag) {
6247 void *ctx;
6248 COMMON_INTERCEPTOR_ENTER_NOIGNORE(ctx, dlopen, filename, flag);
6249 if (filename) COMMON_INTERCEPTOR_READ_STRING(ctx, filename, 0);
6250 COMMON_INTERCEPTOR_ON_DLOPEN(filename, flag);
6251 void *res = REAL(dlopen)(filename, flag);
6252 Symbolizer::GetOrInit()->InvalidateModuleList();
6253 COMMON_INTERCEPTOR_LIBRARY_LOADED(filename, res);
6254 return res;
6255}
6256
6257INTERCEPTOR(int, dlclose, void *handle) {
6258 void *ctx;
6259 COMMON_INTERCEPTOR_ENTER_NOIGNORE(ctx, dlclose, handle);
6260 int res = REAL(dlclose)(handle);
6261 Symbolizer::GetOrInit()->InvalidateModuleList();
6262 COMMON_INTERCEPTOR_LIBRARY_UNLOADED();
6263 return res;
6264}
6265#define INIT_DLOPEN_DLCLOSE \
6266 COMMON_INTERCEPT_FUNCTION(dlopen); \
6267 COMMON_INTERCEPT_FUNCTION(dlclose);
6268#else
6269#define INIT_DLOPEN_DLCLOSE
6270#endif
6271
6272#if SANITIZER_INTERCEPT_GETPASS
6273INTERCEPTOR(char *, getpass, const char *prompt) {
6274 void *ctx;
6275 COMMON_INTERCEPTOR_ENTER(ctx, getpass, prompt);
6276 if (prompt)
6277 COMMON_INTERCEPTOR_READ_RANGE(ctx, prompt, REAL(strlen)(prompt)+1);
6278 char *res = REAL(getpass)(prompt);
6279 if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res)+1);
6280 return res;
6281}
6282
6283#define INIT_GETPASS COMMON_INTERCEPT_FUNCTION(getpass);
6284#else
6285#define INIT_GETPASS
6286#endif
6287
6288#if SANITIZER_INTERCEPT_TIMERFD
6289INTERCEPTOR(int, timerfd_settime, int fd, int flags, void *new_value,
6290 void *old_value) {
6291 void *ctx;
6292 COMMON_INTERCEPTOR_ENTER(ctx, timerfd_settime, fd, flags, new_value,
6293 old_value);
6294 COMMON_INTERCEPTOR_READ_RANGE(ctx, new_value, struct_itimerspec_sz);
6295 int res = REAL(timerfd_settime)(fd, flags, new_value, old_value);
6296 if (res != -1 && old_value)
6297 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, old_value, struct_itimerspec_sz);
6298 return res;
6299}
6300
6301INTERCEPTOR(int, timerfd_gettime, int fd, void *curr_value) {
6302 void *ctx;
6303 COMMON_INTERCEPTOR_ENTER(ctx, timerfd_gettime, fd, curr_value);
6304 int res = REAL(timerfd_gettime)(fd, curr_value);
6305 if (res != -1 && curr_value)
6306 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, curr_value, struct_itimerspec_sz);
6307 return res;
6308}
6309#define INIT_TIMERFD \
6310 COMMON_INTERCEPT_FUNCTION(timerfd_settime); \
6311 COMMON_INTERCEPT_FUNCTION(timerfd_gettime);
6312#else
6313#define INIT_TIMERFD
6314#endif
6315
6316#if SANITIZER_INTERCEPT_MLOCKX
6317// Linux kernel has a bug that leads to kernel deadlock if a process
6318// maps TBs of memory and then calls mlock().
6319static void MlockIsUnsupported() {
6320 static atomic_uint8_t printed;
6321 if (atomic_exchange(&printed, 1, memory_order_relaxed))
6322 return;
6323 VPrintf(1, "%s ignores mlock/mlockall/munlock/munlockall\n",
6324 SanitizerToolName);
6325}
6326
6327INTERCEPTOR(int, mlock, const void *addr, uptr len) {
6328 MlockIsUnsupported();
6329 return 0;
6330}
6331
6332INTERCEPTOR(int, munlock, const void *addr, uptr len) {
6333 MlockIsUnsupported();
6334 return 0;
6335}
6336
6337INTERCEPTOR(int, mlockall, int flags) {
6338 MlockIsUnsupported();
6339 return 0;
6340}
6341
6342INTERCEPTOR(int, munlockall, void) {
6343 MlockIsUnsupported();
6344 return 0;
6345}
6346
6347#define INIT_MLOCKX \
6348 COMMON_INTERCEPT_FUNCTION(mlock); \
6349 COMMON_INTERCEPT_FUNCTION(munlock); \
6350 COMMON_INTERCEPT_FUNCTION(mlockall); \
6351 COMMON_INTERCEPT_FUNCTION(munlockall);
6352
6353#else
6354#define INIT_MLOCKX
6355#endif // SANITIZER_INTERCEPT_MLOCKX
6356
6357#if SANITIZER_INTERCEPT_FOPENCOOKIE
6358struct WrappedCookie {
6359 void *real_cookie;
6360 __sanitizer_cookie_io_functions_t real_io_funcs;
6361};
6362
6363static uptr wrapped_read(void *cookie, char *buf, uptr size) {
6364 COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
6365 WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie;
6366 __sanitizer_cookie_io_read real_read = wrapped_cookie->real_io_funcs.read;
6367 return real_read ? real_read(wrapped_cookie->real_cookie, buf, size) : 0;
6368}
6369
6370static uptr wrapped_write(void *cookie, const char *buf, uptr size) {
6371 COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
6372 WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie;
6373 __sanitizer_cookie_io_write real_write = wrapped_cookie->real_io_funcs.write;
6374 return real_write ? real_write(wrapped_cookie->real_cookie, buf, size) : size;
6375}
6376
6377static int wrapped_seek(void *cookie, u64 *offset, int whence) {
6378 COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
6379 COMMON_INTERCEPTOR_INITIALIZE_RANGE(offset, sizeof(*offset));
6380 WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie;
6381 __sanitizer_cookie_io_seek real_seek = wrapped_cookie->real_io_funcs.seek;
6382 return real_seek ? real_seek(wrapped_cookie->real_cookie, offset, whence)
6383 : -1;
6384}
6385
6386static int wrapped_close(void *cookie) {
6387 COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
6388 WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie;
6389 __sanitizer_cookie_io_close real_close = wrapped_cookie->real_io_funcs.close;
6390 int res = real_close ? real_close(wrapped_cookie->real_cookie) : 0;
6391 InternalFree(wrapped_cookie);
6392 return res;
6393}
6394
6395INTERCEPTOR(__sanitizer_FILE *, fopencookie, void *cookie, const char *mode,
6396 __sanitizer_cookie_io_functions_t io_funcs) {
6397 void *ctx;
6398 COMMON_INTERCEPTOR_ENTER(ctx, fopencookie, cookie, mode, io_funcs);
6399 WrappedCookie *wrapped_cookie =
6400 (WrappedCookie *)InternalAlloc(sizeof(WrappedCookie));
6401 wrapped_cookie->real_cookie = cookie;
6402 wrapped_cookie->real_io_funcs = io_funcs;
6403 __sanitizer_FILE *res =
6404 REAL(fopencookie)(wrapped_cookie, mode, {wrapped_read, wrapped_write,
6405 wrapped_seek, wrapped_close});
6406 return res;
6407}
6408
6409#define INIT_FOPENCOOKIE COMMON_INTERCEPT_FUNCTION(fopencookie);
6410#else
6411#define INIT_FOPENCOOKIE
6412#endif // SANITIZER_INTERCEPT_FOPENCOOKIE
6413
6414#if SANITIZER_INTERCEPT_SEM
6415INTERCEPTOR(int, sem_init, __sanitizer_sem_t *s, int pshared, unsigned value) {
6416 void *ctx;
6417 COMMON_INTERCEPTOR_ENTER(ctx, sem_init, s, pshared, value);
6418 // Workaround a bug in glibc's "old" semaphore implementation by
6419 // zero-initializing the sem_t contents. This has to be done here because
6420 // interceptors bind to the lowest symbols version by default, hitting the
6421 // buggy code path while the non-sanitized build of the same code works fine.
6422 REAL(memset)(s, 0, sizeof(*s));
6423 int res = REAL(sem_init)(s, pshared, value);
6424 return res;
6425}
6426
6427INTERCEPTOR(int, sem_destroy, __sanitizer_sem_t *s) {
6428 void *ctx;
6429 COMMON_INTERCEPTOR_ENTER(ctx, sem_destroy, s);
6430 int res = REAL(sem_destroy)(s);
6431 return res;
6432}
6433
6434INTERCEPTOR(int, sem_wait, __sanitizer_sem_t *s) {
6435 void *ctx;
6436 COMMON_INTERCEPTOR_ENTER(ctx, sem_wait, s);
6437 int res = COMMON_INTERCEPTOR_BLOCK_REAL(sem_wait)(s);
6438 if (res == 0) {
6439 COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s);
6440 }
6441 return res;
6442}
6443
6444INTERCEPTOR(int, sem_trywait, __sanitizer_sem_t *s) {
6445 void *ctx;
6446 COMMON_INTERCEPTOR_ENTER(ctx, sem_trywait, s);
6447 int res = COMMON_INTERCEPTOR_BLOCK_REAL(sem_trywait)(s);
6448 if (res == 0) {
6449 COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s);
6450 }
6451 return res;
6452}
6453
6454INTERCEPTOR(int, sem_timedwait, __sanitizer_sem_t *s, void *abstime) {
6455 void *ctx;
6456 COMMON_INTERCEPTOR_ENTER(ctx, sem_timedwait, s, abstime);
6457 COMMON_INTERCEPTOR_READ_RANGE(ctx, abstime, struct_timespec_sz);
6458 int res = COMMON_INTERCEPTOR_BLOCK_REAL(sem_timedwait)(s, abstime);
6459 if (res == 0) {
6460 COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s);
6461 }
6462 return res;
6463}
6464
6465INTERCEPTOR(int, sem_post, __sanitizer_sem_t *s) {
6466 void *ctx;
6467 COMMON_INTERCEPTOR_ENTER(ctx, sem_post, s);
6468 COMMON_INTERCEPTOR_RELEASE(ctx, (uptr)s);
6469 int res = REAL(sem_post)(s);
6470 return res;
6471}
6472
6473INTERCEPTOR(int, sem_getvalue, __sanitizer_sem_t *s, int *sval) {
6474 void *ctx;
6475 COMMON_INTERCEPTOR_ENTER(ctx, sem_getvalue, s, sval);
6476 int res = REAL(sem_getvalue)(s, sval);
6477 if (res == 0) {
6478 COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s);
6479 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sval, sizeof(*sval));
6480 }
6481 return res;
6482}
6483#define INIT_SEM \
6484 COMMON_INTERCEPT_FUNCTION(sem_init); \
6485 COMMON_INTERCEPT_FUNCTION(sem_destroy); \
6486 COMMON_INTERCEPT_FUNCTION(sem_wait); \
6487 COMMON_INTERCEPT_FUNCTION(sem_trywait); \
6488 COMMON_INTERCEPT_FUNCTION(sem_timedwait); \
6489 COMMON_INTERCEPT_FUNCTION(sem_post); \
6490 COMMON_INTERCEPT_FUNCTION(sem_getvalue);
6491#else
6492#define INIT_SEM
6493#endif // SANITIZER_INTERCEPT_SEM
6494
6495#if SANITIZER_INTERCEPT_PTHREAD_SETCANCEL
6496INTERCEPTOR(int, pthread_setcancelstate, int state, int *oldstate) {
6497 void *ctx;
6498 COMMON_INTERCEPTOR_ENTER(ctx, pthread_setcancelstate, state, oldstate);
6499 int res = REAL(pthread_setcancelstate)(state, oldstate);
6500 if (res == 0 && oldstate != nullptr)
6501 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldstate, sizeof(*oldstate));
6502 return res;
6503}
6504
6505INTERCEPTOR(int, pthread_setcanceltype, int type, int *oldtype) {
6506 void *ctx;
6507 COMMON_INTERCEPTOR_ENTER(ctx, pthread_setcanceltype, type, oldtype);
6508 int res = REAL(pthread_setcanceltype)(type, oldtype);
6509 if (res == 0 && oldtype != nullptr)
6510 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldtype, sizeof(*oldtype));
6511 return res;
6512}
6513#define INIT_PTHREAD_SETCANCEL \
6514 COMMON_INTERCEPT_FUNCTION(pthread_setcancelstate); \
6515 COMMON_INTERCEPT_FUNCTION(pthread_setcanceltype);
6516#else
6517#define INIT_PTHREAD_SETCANCEL
6518#endif
6519
6520#if SANITIZER_INTERCEPT_MINCORE
6521INTERCEPTOR(int, mincore, void *addr, uptr length, unsigned char *vec) {
6522 void *ctx;
6523 COMMON_INTERCEPTOR_ENTER(ctx, mincore, addr, length, vec);
6524 int res = REAL(mincore)(addr, length, vec);
6525 if (res == 0) {
6526 uptr page_size = GetPageSizeCached();
6527 uptr vec_size = ((length + page_size - 1) & (~(page_size - 1))) / page_size;
6528 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, vec, vec_size);
6529 }
6530 return res;
6531}
6532#define INIT_MINCORE COMMON_INTERCEPT_FUNCTION(mincore);
6533#else
6534#define INIT_MINCORE
6535#endif
6536
6537#if SANITIZER_INTERCEPT_PROCESS_VM_READV
6538INTERCEPTOR(SSIZE_T, process_vm_readv, int pid, __sanitizer_iovec *local_iov,
6539 uptr liovcnt, __sanitizer_iovec *remote_iov, uptr riovcnt,
6540 uptr flags) {
6541 void *ctx;
6542 COMMON_INTERCEPTOR_ENTER(ctx, process_vm_readv, pid, local_iov, liovcnt,
6543 remote_iov, riovcnt, flags);
6544 SSIZE_T res = REAL(process_vm_readv)(pid, local_iov, liovcnt, remote_iov,
6545 riovcnt, flags);
6546 if (res > 0)
6547 write_iovec(ctx, local_iov, liovcnt, res);
6548 return res;
6549}
6550
6551INTERCEPTOR(SSIZE_T, process_vm_writev, int pid, __sanitizer_iovec *local_iov,
6552 uptr liovcnt, __sanitizer_iovec *remote_iov, uptr riovcnt,
6553 uptr flags) {
6554 void *ctx;
6555 COMMON_INTERCEPTOR_ENTER(ctx, process_vm_writev, pid, local_iov, liovcnt,
6556 remote_iov, riovcnt, flags);
6557 SSIZE_T res = REAL(process_vm_writev)(pid, local_iov, liovcnt, remote_iov,
6558 riovcnt, flags);
6559 if (res > 0)
6560 read_iovec(ctx, local_iov, liovcnt, res);
6561 return res;
6562}
6563#define INIT_PROCESS_VM_READV \
6564 COMMON_INTERCEPT_FUNCTION(process_vm_readv); \
6565 COMMON_INTERCEPT_FUNCTION(process_vm_writev);
6566#else
6567#define INIT_PROCESS_VM_READV
6568#endif
6569
6570#if SANITIZER_INTERCEPT_CTERMID
6571INTERCEPTOR(char *, ctermid, char *s) {
6572 void *ctx;
6573 COMMON_INTERCEPTOR_ENTER(ctx, ctermid, s);
6574 char *res = REAL(ctermid)(s);
6575 if (res) {
6576 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
6577 }
6578 return res;
6579}
6580#define INIT_CTERMID COMMON_INTERCEPT_FUNCTION(ctermid);
6581#else
6582#define INIT_CTERMID
6583#endif
6584
6585#if SANITIZER_INTERCEPT_CTERMID_R
6586INTERCEPTOR(char *, ctermid_r, char *s) {
6587 void *ctx;
6588 COMMON_INTERCEPTOR_ENTER(ctx, ctermid_r, s);
6589 char *res = REAL(ctermid_r)(s);
6590 if (res) {
6591 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
6592 }
6593 return res;
6594}
6595#define INIT_CTERMID_R COMMON_INTERCEPT_FUNCTION(ctermid_r);
6596#else
6597#define INIT_CTERMID_R
6598#endif
6599
6600#if SANITIZER_INTERCEPT_RECV_RECVFROM
6601INTERCEPTOR(SSIZE_T, recv, int fd, void *buf, SIZE_T len, int flags) {
6602 void *ctx;
6603 COMMON_INTERCEPTOR_ENTER(ctx, recv, fd, buf, len, flags);
6604 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
6605 SSIZE_T res = REAL(recv)(fd, buf, len, flags);
6606 if (res > 0) {
6607 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, Min((SIZE_T)res, len));
6608 }
6609 if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
6610 return res;
6611}
6612
6613INTERCEPTOR(SSIZE_T, recvfrom, int fd, void *buf, SIZE_T len, int flags,
6614 void *srcaddr, int *addrlen) {
6615 void *ctx;
6616 COMMON_INTERCEPTOR_ENTER(ctx, recvfrom, fd, buf, len, flags, srcaddr,
6617 addrlen);
6618 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
6619 SIZE_T srcaddr_sz;
6620 if (srcaddr) srcaddr_sz = *addrlen;
6621 (void)srcaddr_sz; // prevent "set but not used" warning
6622 SSIZE_T res = REAL(recvfrom)(fd, buf, len, flags, srcaddr, addrlen);
6623 if (res > 0)
6624 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, Min((SIZE_T)res, len));
6625 if (res >= 0 && srcaddr)
6626 COMMON_INTERCEPTOR_INITIALIZE_RANGE(srcaddr,
6627 Min((SIZE_T)*addrlen, srcaddr_sz));
6628 return res;
6629}
6630#define INIT_RECV_RECVFROM \
6631 COMMON_INTERCEPT_FUNCTION(recv); \
6632 COMMON_INTERCEPT_FUNCTION(recvfrom);
6633#else
6634#define INIT_RECV_RECVFROM
6635#endif
6636
6637#if SANITIZER_INTERCEPT_SEND_SENDTO
6638INTERCEPTOR(SSIZE_T, send, int fd, void *buf, SIZE_T len, int flags) {
6639 void *ctx;
6640 COMMON_INTERCEPTOR_ENTER(ctx, send, fd, buf, len, flags);
6641 if (fd >= 0) {
6642 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
6643 COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
6644 }
6645 SSIZE_T res = REAL(send)(fd, buf, len, flags);
6646 if (common_flags()->intercept_send && res > 0)
6647 COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, Min((SIZE_T)res, len));
6648 return res;
6649}
6650
6651INTERCEPTOR(SSIZE_T, sendto, int fd, void *buf, SIZE_T len, int flags,
6652 void *dstaddr, int addrlen) {
6653 void *ctx;
6654 COMMON_INTERCEPTOR_ENTER(ctx, sendto, fd, buf, len, flags, dstaddr, addrlen);
6655 if (fd >= 0) {
6656 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
6657 COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
6658 }
6659 // Can't check dstaddr as it may have uninitialized padding at the end.
6660 SSIZE_T res = REAL(sendto)(fd, buf, len, flags, dstaddr, addrlen);
6661 if (common_flags()->intercept_send && res > 0)
6662 COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, Min((SIZE_T)res, len));
6663 return res;
6664}
6665#define INIT_SEND_SENDTO \
6666 COMMON_INTERCEPT_FUNCTION(send); \
6667 COMMON_INTERCEPT_FUNCTION(sendto);
6668#else
6669#define INIT_SEND_SENDTO
6670#endif
6671
6672#if SANITIZER_INTERCEPT_EVENTFD_READ_WRITE
6673INTERCEPTOR(int, eventfd_read, int fd, u64 *value) {
6674 void *ctx;
6675 COMMON_INTERCEPTOR_ENTER(ctx, eventfd_read, fd, value);
6676 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
6677 int res = REAL(eventfd_read)(fd, value);
6678 if (res == 0) {
6679 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, sizeof(*value));
6680 if (fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
6681 }
6682 return res;
6683}
6684INTERCEPTOR(int, eventfd_write, int fd, u64 value) {
6685 void *ctx;
6686 COMMON_INTERCEPTOR_ENTER(ctx, eventfd_write, fd, value);
6687 if (fd >= 0) {
6688 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
6689 COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
6690 }
6691 int res = REAL(eventfd_write)(fd, value);
6692 return res;
6693}
6694#define INIT_EVENTFD_READ_WRITE \
6695 COMMON_INTERCEPT_FUNCTION(eventfd_read); \
6696 COMMON_INTERCEPT_FUNCTION(eventfd_write)
6697#else
6698#define INIT_EVENTFD_READ_WRITE
6699#endif
6700
6701#if SANITIZER_INTERCEPT_STAT
6702INTERCEPTOR(int, stat, const char *path, void *buf) {
6703 void *ctx;
6704 COMMON_INTERCEPTOR_ENTER(ctx, stat, path, buf);
6705 if (common_flags()->intercept_stat)
6706 COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0);
6707 int res = REAL(stat)(path, buf);
6708 if (!res)
6709 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz);
6710 return res;
6711}
6712#define INIT_STAT COMMON_INTERCEPT_FUNCTION(stat)
6713#else
6714#define INIT_STAT
6715#endif
6716
6717#if SANITIZER_INTERCEPT_LSTAT
6718INTERCEPTOR(int, lstat, const char *path, void *buf) {
6719 void *ctx;
6720 COMMON_INTERCEPTOR_ENTER(ctx, lstat, path, buf);
6721 if (common_flags()->intercept_stat)
6722 COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0);
6723 int res = REAL(lstat)(path, buf);
6724 if (!res)
6725 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz);
6726 return res;
6727}
6728#define INIT_LSTAT COMMON_INTERCEPT_FUNCTION(lstat)
6729#else
6730#define INIT_LSTAT
6731#endif
6732
6733#if SANITIZER_INTERCEPT___XSTAT
6734INTERCEPTOR(int, __xstat, int version, const char *path, void *buf) {
6735 void *ctx;
6736 COMMON_INTERCEPTOR_ENTER(ctx, __xstat, version, path, buf);
6737 if (common_flags()->intercept_stat)
6738 COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0);
6739 int res = REAL(__xstat)(version, path, buf);
6740 if (!res)
6741 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz);
6742 return res;
6743}
6744#define INIT___XSTAT COMMON_INTERCEPT_FUNCTION(__xstat)
6745#else
6746#define INIT___XSTAT
6747#endif
6748
6749#if SANITIZER_INTERCEPT___XSTAT64
6750INTERCEPTOR(int, __xstat64, int version, const char *path, void *buf) {
6751 void *ctx;
6752 COMMON_INTERCEPTOR_ENTER(ctx, __xstat64, version, path, buf);
6753 if (common_flags()->intercept_stat)
6754 COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0);
6755 int res = REAL(__xstat64)(version, path, buf);
6756 if (!res)
6757 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat64_sz);
6758 return res;
6759}
6760#define INIT___XSTAT64 COMMON_INTERCEPT_FUNCTION(__xstat64)
6761#else
6762#define INIT___XSTAT64
6763#endif
6764
6765#if SANITIZER_INTERCEPT___LXSTAT
6766INTERCEPTOR(int, __lxstat, int version, const char *path, void *buf) {
6767 void *ctx;
6768 COMMON_INTERCEPTOR_ENTER(ctx, __lxstat, version, path, buf);
6769 if (common_flags()->intercept_stat)
6770 COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0);
6771 int res = REAL(__lxstat)(version, path, buf);
6772 if (!res)
6773 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz);
6774 return res;
6775}
6776#define INIT___LXSTAT COMMON_INTERCEPT_FUNCTION(__lxstat)
6777#else
6778#define INIT___LXSTAT
6779#endif
6780
6781#if SANITIZER_INTERCEPT___LXSTAT64
6782INTERCEPTOR(int, __lxstat64, int version, const char *path, void *buf) {
6783 void *ctx;
6784 COMMON_INTERCEPTOR_ENTER(ctx, __lxstat64, version, path, buf);
6785 if (common_flags()->intercept_stat)
6786 COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0);
6787 int res = REAL(__lxstat64)(version, path, buf);
6788 if (!res)
6789 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat64_sz);
6790 return res;
6791}
6792#define INIT___LXSTAT64 COMMON_INTERCEPT_FUNCTION(__lxstat64)
6793#else
6794#define INIT___LXSTAT64
6795#endif
6796
6797// FIXME: add other *stat interceptor
6798
6799#if SANITIZER_INTERCEPT_UTMP
6800INTERCEPTOR(void *, getutent, int dummy) {
6801 void *ctx;
6802 COMMON_INTERCEPTOR_ENTER(ctx, getutent, dummy);
6803 void *res = REAL(getutent)(dummy);
6804 if (res)
6805 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmp_sz);
6806 return res;
6807}
6808INTERCEPTOR(void *, getutid, void *ut) {
6809 void *ctx;
6810 COMMON_INTERCEPTOR_ENTER(ctx, getutid, ut);
6811 void *res = REAL(getutid)(ut);
6812 if (res)
6813 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmp_sz);
6814 return res;
6815}
6816INTERCEPTOR(void *, getutline, void *ut) {
6817 void *ctx;
6818 COMMON_INTERCEPTOR_ENTER(ctx, getutline, ut);
6819 void *res = REAL(getutline)(ut);
6820 if (res)
6821 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmp_sz);
6822 return res;
6823}
6824#define INIT_UTMP \
6825 COMMON_INTERCEPT_FUNCTION(getutent); \
6826 COMMON_INTERCEPT_FUNCTION(getutid); \
6827 COMMON_INTERCEPT_FUNCTION(getutline);
6828#else
6829#define INIT_UTMP
6830#endif
6831
6832#if SANITIZER_INTERCEPT_UTMPX
6833INTERCEPTOR(void *, getutxent, int dummy) {
6834 void *ctx;
6835 COMMON_INTERCEPTOR_ENTER(ctx, getutxent, dummy);
6836 void *res = REAL(getutxent)(dummy);
6837 if (res)
6838 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmpx_sz);
6839 return res;
6840}
6841INTERCEPTOR(void *, getutxid, void *ut) {
6842 void *ctx;
6843 COMMON_INTERCEPTOR_ENTER(ctx, getutxid, ut);
6844 void *res = REAL(getutxid)(ut);
6845 if (res)
6846 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmpx_sz);
6847 return res;
6848}
6849INTERCEPTOR(void *, getutxline, void *ut) {
6850 void *ctx;
6851 COMMON_INTERCEPTOR_ENTER(ctx, getutxline, ut);
6852 void *res = REAL(getutxline)(ut);
6853 if (res)
6854 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmpx_sz);
6855 return res;
6856}
6857INTERCEPTOR(void *, pututxline, const void *ut) {
6858 void *ctx;
6859 COMMON_INTERCEPTOR_ENTER(ctx, pututxline, ut);
6860 if (ut)
6861 COMMON_INTERCEPTOR_READ_RANGE(ctx, ut, __sanitizer::struct_utmpx_sz);
6862 void *res = REAL(pututxline)(ut);
6863 if (res)
6864 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, __sanitizer::struct_utmpx_sz);
6865 return res;
6866}
6867#define INIT_UTMPX \
6868 COMMON_INTERCEPT_FUNCTION(getutxent); \
6869 COMMON_INTERCEPT_FUNCTION(getutxid); \
6870 COMMON_INTERCEPT_FUNCTION(getutxline); \
6871 COMMON_INTERCEPT_FUNCTION(pututxline);
6872#else
6873#define INIT_UTMPX
6874#endif
6875
6876#if SANITIZER_INTERCEPT_GETLOADAVG
6877INTERCEPTOR(int, getloadavg, double *loadavg, int nelem) {
6878 void *ctx;
6879 COMMON_INTERCEPTOR_ENTER(ctx, getloadavg, loadavg, nelem);
6880 int res = REAL(getloadavg)(loadavg, nelem);
6881 if (res > 0)
6882 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, loadavg, res * sizeof(*loadavg));
6883 return res;
6884}
6885#define INIT_GETLOADAVG \
6886 COMMON_INTERCEPT_FUNCTION(getloadavg);
6887#else
6888#define INIT_GETLOADAVG
6889#endif
6890
6891#if SANITIZER_INTERCEPT_MCHECK_MPROBE
6892INTERCEPTOR(int, mcheck, void (*abortfunc)(int mstatus)) {
6893 return 0;
6894}
6895
6896INTERCEPTOR(int, mcheck_pedantic, void (*abortfunc)(int mstatus)) {
6897 return 0;
6898}
6899
6900INTERCEPTOR(int, mprobe, void *ptr) {
6901 return 0;
6902}
6903#endif
6904
6905INTERCEPTOR(SIZE_T, wcslen, const wchar_t *s) {
6906 void *ctx;
6907 COMMON_INTERCEPTOR_ENTER(ctx, wcslen, s);
6908 SIZE_T res = REAL(wcslen)(s);
6909 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, sizeof(wchar_t) * (res + 1));
6910 return res;
6911}
6912
6913INTERCEPTOR(SIZE_T, wcsnlen, const wchar_t *s, SIZE_T n) {
6914 void *ctx;
6915 COMMON_INTERCEPTOR_ENTER(ctx, wcsnlen, s, n);
6916 SIZE_T res = REAL(wcsnlen)(s, n);
6917 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, sizeof(wchar_t) * Min(res + 1, n));
6918 return res;
6919}
6920#define INIT_WCSLEN \
6921 COMMON_INTERCEPT_FUNCTION(wcslen); \
6922 COMMON_INTERCEPT_FUNCTION(wcsnlen);
6923
6924#if SANITIZER_INTERCEPT_WCSCAT
6925INTERCEPTOR(wchar_t *, wcscat, wchar_t *dst, const wchar_t *src) {
6926 void *ctx;
6927 COMMON_INTERCEPTOR_ENTER(ctx, wcscat, dst, src);
6928 SIZE_T src_size = REAL(wcslen)(src);
6929 SIZE_T dst_size = REAL(wcslen)(dst);
6930 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, (src_size + 1) * sizeof(wchar_t));
6931 COMMON_INTERCEPTOR_READ_RANGE(ctx, dst, (dst_size + 1) * sizeof(wchar_t));
6932 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst + dst_size,
6933 (src_size + 1) * sizeof(wchar_t));
6934 return REAL(wcscat)(dst, src);
6935}
6936
6937INTERCEPTOR(wchar_t *, wcsncat, wchar_t *dst, const wchar_t *src, SIZE_T n) {
6938 void *ctx;
6939 COMMON_INTERCEPTOR_ENTER(ctx, wcsncat, dst, src, n);
6940 SIZE_T src_size = REAL(wcsnlen)(src, n);
6941 SIZE_T dst_size = REAL(wcslen)(dst);
6942 COMMON_INTERCEPTOR_READ_RANGE(ctx, src,
6943 Min(src_size + 1, n) * sizeof(wchar_t));
6944 COMMON_INTERCEPTOR_READ_RANGE(ctx, dst, (dst_size + 1) * sizeof(wchar_t));
6945 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst + dst_size,
6946 (src_size + 1) * sizeof(wchar_t));
6947 return REAL(wcsncat)(dst, src, n);
6948}
6949#define INIT_WCSCAT \
6950 COMMON_INTERCEPT_FUNCTION(wcscat); \
6951 COMMON_INTERCEPT_FUNCTION(wcsncat);
6952#else
6953#define INIT_WCSCAT
6954#endif
6955
6956#if SANITIZER_INTERCEPT_WCSDUP
6957INTERCEPTOR(wchar_t *, wcsdup, wchar_t *s) {
6958 void *ctx;
6959 COMMON_INTERCEPTOR_ENTER(ctx, wcsdup, s);
6960 SIZE_T len = REAL(wcslen)(s);
6961 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, sizeof(wchar_t) * (len + 1));
6962 wchar_t *result = REAL(wcsdup)(s);
6963 if (result)
6964 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(wchar_t) * (len + 1));
6965 return result;
6966}
6967
6968#define INIT_WCSDUP COMMON_INTERCEPT_FUNCTION(wcsdup);
6969#else
6970#define INIT_WCSDUP
6971#endif
6972
6973#if SANITIZER_INTERCEPT_STRXFRM
6974static SIZE_T RealStrLen(const char *str) { return REAL(strlen)(str); }
6975
6976static SIZE_T RealStrLen(const wchar_t *str) { return REAL(wcslen)(str); }
6977
6978#define STRXFRM_INTERCEPTOR_IMPL(strxfrm, dest, src, len, ...) \
6979 { \
6980 void *ctx; \
6981 COMMON_INTERCEPTOR_ENTER(ctx, strxfrm, dest, src, len, ##__VA_ARGS__); \
6982 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, \
6983 sizeof(*src) * (RealStrLen(src) + 1)); \
6984 SIZE_T res = REAL(strxfrm)(dest, src, len, ##__VA_ARGS__); \
6985 if (res < len) \
6986 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, sizeof(*src) * (res + 1)); \
6987 return res; \
6988 }
6989
6990INTERCEPTOR(SIZE_T, strxfrm, char *dest, const char *src, SIZE_T len) {
6991 STRXFRM_INTERCEPTOR_IMPL(strxfrm, dest, src, len);
6992}
6993
6994INTERCEPTOR(SIZE_T, strxfrm_l, char *dest, const char *src, SIZE_T len,
6995 void *locale) {
6996 STRXFRM_INTERCEPTOR_IMPL(strxfrm_l, dest, src, len, locale);
6997}
6998
6999#define INIT_STRXFRM \
7000 COMMON_INTERCEPT_FUNCTION(strxfrm); \
7001 COMMON_INTERCEPT_FUNCTION(strxfrm_l);
7002#else
7003#define INIT_STRXFRM
7004#endif
7005
7006#if SANITIZER_INTERCEPT___STRXFRM_L
7007INTERCEPTOR(SIZE_T, __strxfrm_l, char *dest, const char *src, SIZE_T len,
7008 void *locale) {
7009 STRXFRM_INTERCEPTOR_IMPL(__strxfrm_l, dest, src, len, locale);
7010}
7011
7012#define INIT___STRXFRM_L COMMON_INTERCEPT_FUNCTION(__strxfrm_l);
7013#else
7014#define INIT___STRXFRM_L
7015#endif
7016
7017#if SANITIZER_INTERCEPT_WCSXFRM
7018INTERCEPTOR(SIZE_T, wcsxfrm, wchar_t *dest, const wchar_t *src, SIZE_T len) {
7019 STRXFRM_INTERCEPTOR_IMPL(wcsxfrm, dest, src, len);
7020}
7021
7022INTERCEPTOR(SIZE_T, wcsxfrm_l, wchar_t *dest, const wchar_t *src, SIZE_T len,
7023 void *locale) {
7024 STRXFRM_INTERCEPTOR_IMPL(wcsxfrm_l, dest, src, len, locale);
7025}
7026
7027#define INIT_WCSXFRM \
7028 COMMON_INTERCEPT_FUNCTION(wcsxfrm); \
7029 COMMON_INTERCEPT_FUNCTION(wcsxfrm_l);
7030#else
7031#define INIT_WCSXFRM
7032#endif
7033
7034#if SANITIZER_INTERCEPT___WCSXFRM_L
7035INTERCEPTOR(SIZE_T, __wcsxfrm_l, wchar_t *dest, const wchar_t *src, SIZE_T len,
7036 void *locale) {
7037 STRXFRM_INTERCEPTOR_IMPL(__wcsxfrm_l, dest, src, len, locale);
7038}
7039
7040#define INIT___WCSXFRM_L COMMON_INTERCEPT_FUNCTION(__wcsxfrm_l);
7041#else
7042#define INIT___WCSXFRM_L
7043#endif
7044
7045#if SANITIZER_INTERCEPT_ACCT
7046INTERCEPTOR(int, acct, const char *file) {
7047 void *ctx;
7048 COMMON_INTERCEPTOR_ENTER(ctx, acct, file);
7049 if (file)
7050 COMMON_INTERCEPTOR_READ_RANGE(ctx, file, REAL(strlen)(file) + 1);
7051 return REAL(acct)(file);
7052}
7053#define INIT_ACCT COMMON_INTERCEPT_FUNCTION(acct)
7054#else
7055#define INIT_ACCT
7056#endif
7057
7058#if SANITIZER_INTERCEPT_USER_FROM_UID
7059INTERCEPTOR(const char *, user_from_uid, u32 uid, int nouser) {
7060 void *ctx;
7061 const char *user;
7062 COMMON_INTERCEPTOR_ENTER(ctx, user_from_uid, uid, nouser);
7063 user = REAL(user_from_uid)(uid, nouser);
7064 if (user)
7065 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, user, REAL(strlen)(user) + 1);
7066 return user;
7067}
7068#define INIT_USER_FROM_UID COMMON_INTERCEPT_FUNCTION(user_from_uid)
7069#else
7070#define INIT_USER_FROM_UID
7071#endif
7072
7073#if SANITIZER_INTERCEPT_UID_FROM_USER
7074INTERCEPTOR(int, uid_from_user, const char *name, u32 *uid) {
7075 void *ctx;
7076 int res;
7077 COMMON_INTERCEPTOR_ENTER(ctx, uid_from_user, name, uid);
7078 if (name)
7079 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
7080 res = REAL(uid_from_user)(name, uid);
7081 if (uid)
7082 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, uid, sizeof(*uid));
7083 return res;
7084}
7085#define INIT_UID_FROM_USER COMMON_INTERCEPT_FUNCTION(uid_from_user)
7086#else
7087#define INIT_UID_FROM_USER
7088#endif
7089
7090#if SANITIZER_INTERCEPT_GROUP_FROM_GID
7091INTERCEPTOR(const char *, group_from_gid, u32 gid, int nogroup) {
7092 void *ctx;
7093 const char *group;
7094 COMMON_INTERCEPTOR_ENTER(ctx, group_from_gid, gid, nogroup);
7095 group = REAL(group_from_gid)(gid, nogroup);
7096 if (group)
7097 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, group, REAL(strlen)(group) + 1);
7098 return group;
7099}
7100#define INIT_GROUP_FROM_GID COMMON_INTERCEPT_FUNCTION(group_from_gid)
7101#else
7102#define INIT_GROUP_FROM_GID
7103#endif
7104
7105#if SANITIZER_INTERCEPT_GID_FROM_GROUP
7106INTERCEPTOR(int, gid_from_group, const char *group, u32 *gid) {
7107 void *ctx;
7108 int res;
7109 COMMON_INTERCEPTOR_ENTER(ctx, gid_from_group, group, gid);
7110 if (group)
7111 COMMON_INTERCEPTOR_READ_RANGE(ctx, group, REAL(strlen)(group) + 1);
7112 res = REAL(gid_from_group)(group, gid);
7113 if (gid)
7114 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, gid, sizeof(*gid));
7115 return res;
7116}
7117#define INIT_GID_FROM_GROUP COMMON_INTERCEPT_FUNCTION(gid_from_group)
7118#else
7119#define INIT_GID_FROM_GROUP
7120#endif
7121
7122#if SANITIZER_INTERCEPT_ACCESS
7123INTERCEPTOR(int, access, const char *path, int mode) {
7124 void *ctx;
7125 COMMON_INTERCEPTOR_ENTER(ctx, access, path, mode);
7126 if (path)
7127 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
7128 return REAL(access)(path, mode);
7129}
7130#define INIT_ACCESS COMMON_INTERCEPT_FUNCTION(access)
7131#else
7132#define INIT_ACCESS
7133#endif
7134
7135#if SANITIZER_INTERCEPT_FACCESSAT
7136INTERCEPTOR(int, faccessat, int fd, const char *path, int mode, int flags) {
7137 void *ctx;
7138 COMMON_INTERCEPTOR_ENTER(ctx, faccessat, fd, path, mode, flags);
7139 if (path)
7140 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
7141 return REAL(faccessat)(fd, path, mode, flags);
7142}
7143#define INIT_FACCESSAT COMMON_INTERCEPT_FUNCTION(faccessat)
7144#else
7145#define INIT_FACCESSAT
7146#endif
7147
7148#if SANITIZER_INTERCEPT_GETGROUPLIST
7149INTERCEPTOR(int, getgrouplist, const char *name, u32 basegid, u32 *groups,
7150 int *ngroups) {
7151 void *ctx;
7152 int res;
7153 COMMON_INTERCEPTOR_ENTER(ctx, getgrouplist, name, basegid, groups, ngroups);
7154 if (name)
7155 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
7156 if (ngroups)
7157 COMMON_INTERCEPTOR_READ_RANGE(ctx, ngroups, sizeof(*ngroups));
7158 res = REAL(getgrouplist)(name, basegid, groups, ngroups);
7159 if (!res && groups && ngroups) {
7160 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, groups, sizeof(*groups) * (*ngroups));
7161 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ngroups, sizeof(*ngroups));
7162 }
7163 return res;
7164}
7165
7166#define INIT_GETGROUPLIST COMMON_INTERCEPT_FUNCTION(getgrouplist);
7167#else
7168#define INIT_GETGROUPLIST
7169#endif
7170
7171#if SANITIZER_INTERCEPT_GETGROUPMEMBERSHIP
7172INTERCEPTOR(int, getgroupmembership, const char *name, u32 basegid, u32 *groups,
7173 int maxgrp, int *ngroups) {
7174 void *ctx;
7175 int res;
7176 COMMON_INTERCEPTOR_ENTER(ctx, getgroupmembership, name, basegid, groups,
7177 maxgrp, ngroups);
7178 if (name)
7179 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
7180 res = REAL(getgroupmembership)(name, basegid, groups, maxgrp, ngroups);
7181 if (!res && groups && ngroups) {
7182 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, groups, sizeof(*groups) * (*ngroups));
7183 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ngroups, sizeof(*ngroups));
7184 }
7185 return res;
7186}
7187
7188#define INIT_GETGROUPMEMBERSHIP COMMON_INTERCEPT_FUNCTION(getgroupmembership);
7189#else
7190#define INIT_GETGROUPMEMBERSHIP
7191#endif
7192
7193#if SANITIZER_INTERCEPT_READLINK
7194INTERCEPTOR(SSIZE_T, readlink, const char *path, char *buf, SIZE_T bufsiz) {
7195 void* ctx;
7196 COMMON_INTERCEPTOR_ENTER(ctx, readlink, path, buf, bufsiz);
7197 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
7198 SSIZE_T res = REAL(readlink)(path, buf, bufsiz);
7199 if (res > 0)
7200 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, res);
7201 return res;
7202}
7203
7204#define INIT_READLINK COMMON_INTERCEPT_FUNCTION(readlink)
7205#else
7206#define INIT_READLINK
7207#endif
7208
7209#if SANITIZER_INTERCEPT_READLINKAT
7210INTERCEPTOR(SSIZE_T, readlinkat, int dirfd, const char *path, char *buf,
7211 SIZE_T bufsiz) {
7212 void* ctx;
7213 COMMON_INTERCEPTOR_ENTER(ctx, readlinkat, dirfd, path, buf, bufsiz);
7214 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
7215 SSIZE_T res = REAL(readlinkat)(dirfd, path, buf, bufsiz);
7216 if (res > 0)
7217 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, res);
7218 return res;
7219}
7220
7221#define INIT_READLINKAT COMMON_INTERCEPT_FUNCTION(readlinkat)
7222#else
7223#define INIT_READLINKAT
7224#endif
7225
7226#if SANITIZER_INTERCEPT_NAME_TO_HANDLE_AT
7227INTERCEPTOR(int, name_to_handle_at, int dirfd, const char *pathname,
7228 struct file_handle *handle, int *mount_id, int flags) {
7229 void* ctx;
7230 COMMON_INTERCEPTOR_ENTER(ctx, name_to_handle_at, dirfd, pathname, handle,
7231 mount_id, flags);
7232 COMMON_INTERCEPTOR_READ_RANGE(ctx, pathname, REAL(strlen)(pathname) + 1);
7233
7234 __sanitizer_file_handle *sanitizer_handle =
7235 reinterpret_cast<__sanitizer_file_handle*>(handle);
7236 COMMON_INTERCEPTOR_READ_RANGE(
7237 ctx, &sanitizer_handle->handle_bytes,
7238 sizeof(sanitizer_handle->handle_bytes));
7239
7240 int res = REAL(name_to_handle_at)(dirfd, pathname, handle, mount_id, flags);
7241 if (!res) {
7242 COMMON_INTERCEPTOR_WRITE_RANGE(
7243 ctx, &sanitizer_handle->handle_bytes,
7244 sizeof(sanitizer_handle->handle_bytes));
7245 COMMON_INTERCEPTOR_WRITE_RANGE(
7246 ctx, &sanitizer_handle->handle_type,
7247 sizeof(sanitizer_handle->handle_type));
7248 COMMON_INTERCEPTOR_WRITE_RANGE(
7249 ctx, &sanitizer_handle->f_handle, sanitizer_handle->handle_bytes);
7250 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mount_id, sizeof(*mount_id));
7251 }
7252 return res;
7253}
7254
7255#define INIT_NAME_TO_HANDLE_AT COMMON_INTERCEPT_FUNCTION(name_to_handle_at)
7256#else
7257#define INIT_NAME_TO_HANDLE_AT
7258#endif
7259
7260#if SANITIZER_INTERCEPT_OPEN_BY_HANDLE_AT
7261INTERCEPTOR(int, open_by_handle_at, int mount_fd, struct file_handle* handle,
7262 int flags) {
7263 void* ctx;
7264 COMMON_INTERCEPTOR_ENTER(ctx, open_by_handle_at, mount_fd, handle, flags);
7265
7266 __sanitizer_file_handle *sanitizer_handle =
7267 reinterpret_cast<__sanitizer_file_handle*>(handle);
7268 COMMON_INTERCEPTOR_READ_RANGE(
7269 ctx, &sanitizer_handle->handle_bytes,
7270 sizeof(sanitizer_handle->handle_bytes));
7271 COMMON_INTERCEPTOR_READ_RANGE(
7272 ctx, &sanitizer_handle->handle_type,
7273 sizeof(sanitizer_handle->handle_type));
7274 COMMON_INTERCEPTOR_READ_RANGE(
7275 ctx, &sanitizer_handle->f_handle, sanitizer_handle->handle_bytes);
7276
7277 return REAL(open_by_handle_at)(mount_fd, handle, flags);
7278}
7279
7280#define INIT_OPEN_BY_HANDLE_AT COMMON_INTERCEPT_FUNCTION(open_by_handle_at)
7281#else
7282#define INIT_OPEN_BY_HANDLE_AT
7283#endif
7284
7285#if SANITIZER_INTERCEPT_STRLCPY
7286INTERCEPTOR(SIZE_T, strlcpy, char *dst, char *src, SIZE_T size) {
7287 void *ctx;
7288 SIZE_T res;
7289 COMMON_INTERCEPTOR_ENTER(ctx, strlcpy, dst, src, size);
7290 if (src) {
7291 // Keep strnlen as macro argument, as macro may ignore it.
7292 COMMON_INTERCEPTOR_READ_STRING(
7293 ctx, src, Min(internal_strnlen(src, size), size - 1) + 1);
7294 }
7295 res = REAL(strlcpy)(dst, src, size);
7296 COMMON_INTERCEPTOR_COPY_STRING(ctx, dst, src, REAL(strlen)(dst) + 1);
7297 return res;
7298}
7299
7300INTERCEPTOR(SIZE_T, strlcat, char *dst, char *src, SIZE_T size) {
7301 void *ctx;
7302 SIZE_T len = 0;
7303 COMMON_INTERCEPTOR_ENTER(ctx, strlcat, dst, src, size);
7304 // src is checked in the strlcpy() interceptor
7305 if (dst) {
7306 len = internal_strnlen(dst, size);
7307 COMMON_INTERCEPTOR_READ_STRING(ctx, dst, Min(len, size - 1) + 1);
7308 }
7309 // Reuse the rest of the code in the strlcpy() interceptor
7310 return WRAP(strlcpy)(dst + len, src, size - len) + len;
7311}
7312#define INIT_STRLCPY \
7313 COMMON_INTERCEPT_FUNCTION(strlcpy); \
7314 COMMON_INTERCEPT_FUNCTION(strlcat);
7315#else
7316#define INIT_STRLCPY
7317#endif
7318
7319#if SANITIZER_INTERCEPT_MMAP
7320INTERCEPTOR(void *, mmap, void *addr, SIZE_T sz, int prot, int flags, int fd,
7321 OFF_T off) {
7322 void *ctx;
7323 if (common_flags()->detect_write_exec)
7324 ReportMmapWriteExec(prot);
7325 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
7326 return (void *)internal_mmap(addr, sz, prot, flags, fd, off);
7327 COMMON_INTERCEPTOR_ENTER(ctx, mmap, addr, sz, prot, flags, fd, off);
7328 COMMON_INTERCEPTOR_MMAP_IMPL(ctx, mmap, addr, sz, prot, flags, fd, off);
7329}
7330
7331INTERCEPTOR(int, mprotect, void *addr, SIZE_T sz, int prot) {
7332 void *ctx;
7333 if (common_flags()->detect_write_exec)
7334 ReportMmapWriteExec(prot);
7335 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
7336 return (int)internal_mprotect(addr, sz, prot);
7337 COMMON_INTERCEPTOR_ENTER(ctx, mprotect, addr, sz, prot);
7338 MprotectMallocZones(addr, prot);
7339 return REAL(mprotect)(addr, sz, prot);
7340}
7341#define INIT_MMAP \
7342 COMMON_INTERCEPT_FUNCTION(mmap); \
7343 COMMON_INTERCEPT_FUNCTION(mprotect);
7344#else
7345#define INIT_MMAP
7346#endif
7347
7348#if SANITIZER_INTERCEPT_MMAP64
7349INTERCEPTOR(void *, mmap64, void *addr, SIZE_T sz, int prot, int flags, int fd,
7350 OFF64_T off) {
7351 void *ctx;
7352 if (common_flags()->detect_write_exec)
7353 ReportMmapWriteExec(prot);
7354 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
7355 return (void *)internal_mmap(addr, sz, prot, flags, fd, off);
7356 COMMON_INTERCEPTOR_ENTER(ctx, mmap64, addr, sz, prot, flags, fd, off);
7357 COMMON_INTERCEPTOR_MMAP_IMPL(ctx, mmap64, addr, sz, prot, flags, fd, off);
7358}
7359#define INIT_MMAP64 COMMON_INTERCEPT_FUNCTION(mmap64);
7360#else
7361#define INIT_MMAP64
7362#endif
7363
7364#if SANITIZER_INTERCEPT_DEVNAME
7365INTERCEPTOR(char *, devname, u64 dev, u32 type) {
7366 void *ctx;
7367 char *name;
7368 COMMON_INTERCEPTOR_ENTER(ctx, devname, dev, type);
7369 name = REAL(devname)(dev, type);
7370 if (name)
7371 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, REAL(strlen)(name) + 1);
7372 return name;
7373}
7374#define INIT_DEVNAME COMMON_INTERCEPT_FUNCTION(devname);
7375#else
7376#define INIT_DEVNAME
7377#endif
7378
7379#if SANITIZER_INTERCEPT_DEVNAME_R
7380#if SANITIZER_NETBSD
7381#define DEVNAME_R_RETTYPE int
7382#define DEVNAME_R_SUCCESS(x) (!(x))
7383#else
7384#define DEVNAME_R_RETTYPE char*
7385#define DEVNAME_R_SUCCESS(x) (x)
7386#endif
7387INTERCEPTOR(DEVNAME_R_RETTYPE, devname_r, u64 dev, u32 type, char *path,
7388 uptr len) {
7389 void *ctx;
7390 COMMON_INTERCEPTOR_ENTER(ctx, devname_r, dev, type, path, len);
7391 DEVNAME_R_RETTYPE res = REAL(devname_r)(dev, type, path, len);
7392 if (DEVNAME_R_SUCCESS(res))
7393 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, path, REAL(strlen)(path) + 1);
7394 return res;
7395}
7396#define INIT_DEVNAME_R COMMON_INTERCEPT_FUNCTION(devname_r);
7397#else
7398#define INIT_DEVNAME_R
7399#endif
7400
7401#if SANITIZER_INTERCEPT_FGETLN
7402INTERCEPTOR(char *, fgetln, __sanitizer_FILE *stream, SIZE_T *len) {
7403 void *ctx;
7404 COMMON_INTERCEPTOR_ENTER(ctx, fgetln, stream, len);
7405 char *str = REAL(fgetln)(stream, len);
7406 if (str && len) {
7407 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, len, sizeof(*len));
7408 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, str, *len);
7409 }
7410 return str;
7411}
7412#define INIT_FGETLN COMMON_INTERCEPT_FUNCTION(fgetln)
7413#else
7414#define INIT_FGETLN
7415#endif
7416
7417#if SANITIZER_INTERCEPT_STRMODE
7418INTERCEPTOR(void, strmode, u32 mode, char *bp) {
7419 void *ctx;
7420 COMMON_INTERCEPTOR_ENTER(ctx, strmode, mode, bp);
7421 REAL(strmode)(mode, bp);
7422 if (bp)
7423 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, bp, REAL(strlen)(bp) + 1);
7424}
7425#define INIT_STRMODE COMMON_INTERCEPT_FUNCTION(strmode)
7426#else
7427#define INIT_STRMODE
7428#endif
7429
7430#if SANITIZER_INTERCEPT_TTYENT
7431INTERCEPTOR(struct __sanitizer_ttyent *, getttyent, void) {
7432 void *ctx;
7433 COMMON_INTERCEPTOR_ENTER(ctx, getttyent);
7434 struct __sanitizer_ttyent *ttyent = REAL(getttyent)();
7435 if (ttyent)
7436 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ttyent, struct_ttyent_sz);
7437 return ttyent;
7438}
7439INTERCEPTOR(struct __sanitizer_ttyent *, getttynam, char *name) {
7440 void *ctx;
7441 COMMON_INTERCEPTOR_ENTER(ctx, getttynam, name);
7442 if (name)
7443 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
7444 struct __sanitizer_ttyent *ttyent = REAL(getttynam)(name);
7445 if (ttyent)
7446 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ttyent, struct_ttyent_sz);
7447 return ttyent;
7448}
7449INTERCEPTOR(int, setttyentpath, char *path) {
7450 void *ctx;
7451 COMMON_INTERCEPTOR_ENTER(ctx, setttyentpath, path);
7452 if (path)
7453 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
7454 return REAL(setttyentpath)(path);
7455}
7456#define INIT_TTYENT \
7457 COMMON_INTERCEPT_FUNCTION(getttyent); \
7458 COMMON_INTERCEPT_FUNCTION(getttynam); \
7459 COMMON_INTERCEPT_FUNCTION(setttyentpath)
7460#else
7461#define INIT_TTYENT
7462#endif
7463
7464#if SANITIZER_INTERCEPT_PROTOENT
7465static void write_protoent(void *ctx, struct __sanitizer_protoent *p) {
7466 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
7467
7468 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_name, REAL(strlen)(p->p_name) + 1);
7469
7470 SIZE_T pp_size = 1; // One handles the trailing \0
7471
7472 for (char **pp = p->p_aliases; *pp; ++pp, ++pp_size)
7473 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *pp, REAL(strlen)(*pp) + 1);
7474
7475 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_aliases,
7476 pp_size * sizeof(char **));
7477}
7478
7479INTERCEPTOR(struct __sanitizer_protoent *, getprotoent) {
7480 void *ctx;
7481 COMMON_INTERCEPTOR_ENTER(ctx, getprotoent);
7482 struct __sanitizer_protoent *p = REAL(getprotoent)();
7483 if (p)
7484 write_protoent(ctx, p);
7485 return p;
7486}
7487
7488INTERCEPTOR(struct __sanitizer_protoent *, getprotobyname, const char *name) {
7489 void *ctx;
7490 COMMON_INTERCEPTOR_ENTER(ctx, getprotobyname, name);
7491 if (name)
7492 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
7493 struct __sanitizer_protoent *p = REAL(getprotobyname)(name);
7494 if (p)
7495 write_protoent(ctx, p);
7496 return p;
7497}
7498
7499INTERCEPTOR(struct __sanitizer_protoent *, getprotobynumber, int proto) {
7500 void *ctx;
7501 COMMON_INTERCEPTOR_ENTER(ctx, getprotobynumber, proto);
7502 struct __sanitizer_protoent *p = REAL(getprotobynumber)(proto);
7503 if (p)
7504 write_protoent(ctx, p);
7505 return p;
7506}
7507#define INIT_PROTOENT \
7508 COMMON_INTERCEPT_FUNCTION(getprotoent); \
7509 COMMON_INTERCEPT_FUNCTION(getprotobyname); \
7510 COMMON_INTERCEPT_FUNCTION(getprotobynumber)
7511#else
7512#define INIT_PROTOENT
7513#endif
7514
7515#if SANITIZER_INTERCEPT_PROTOENT_R
7516INTERCEPTOR(int, getprotoent_r, struct __sanitizer_protoent *result_buf,
7517 char *buf, SIZE_T buflen, struct __sanitizer_protoent **result) {
7518 void *ctx;
7519 COMMON_INTERCEPTOR_ENTER(ctx, getprotoent_r, result_buf, buf, buflen,
7520 result);
7521 int res = REAL(getprotoent_r)(result_buf, buf, buflen, result);
7522
7523 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof *result);
7524 if (!res && *result)
7525 write_protoent(ctx, *result);
7526 return res;
7527}
7528
7529INTERCEPTOR(int, getprotobyname_r, const char *name,
7530 struct __sanitizer_protoent *result_buf, char *buf, SIZE_T buflen,
7531 struct __sanitizer_protoent **result) {
7532 void *ctx;
7533 COMMON_INTERCEPTOR_ENTER(ctx, getprotobyname_r, name, result_buf, buf,
7534 buflen, result);
7535 if (name)
7536 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
7537 int res = REAL(getprotobyname_r)(name, result_buf, buf, buflen, result);
7538
7539 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof *result);
7540 if (!res && *result)
7541 write_protoent(ctx, *result);
7542 return res;
7543}
7544
7545INTERCEPTOR(int, getprotobynumber_r, int num,
7546 struct __sanitizer_protoent *result_buf, char *buf,
7547 SIZE_T buflen, struct __sanitizer_protoent **result) {
7548 void *ctx;
7549 COMMON_INTERCEPTOR_ENTER(ctx, getprotobynumber_r, num, result_buf, buf,
7550 buflen, result);
7551 int res = REAL(getprotobynumber_r)(num, result_buf, buf, buflen, result);
7552
7553 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof *result);
7554 if (!res && *result)
7555 write_protoent(ctx, *result);
7556 return res;
7557}
7558
7559#define INIT_PROTOENT_R \
7560 COMMON_INTERCEPT_FUNCTION(getprotoent_r); \
7561 COMMON_INTERCEPT_FUNCTION(getprotobyname_r); \
7562 COMMON_INTERCEPT_FUNCTION(getprotobynumber_r);
7563#else
7564#define INIT_PROTOENT_R
7565#endif
7566
7567#if SANITIZER_INTERCEPT_NETENT
7568INTERCEPTOR(struct __sanitizer_netent *, getnetent) {
7569 void *ctx;
7570 COMMON_INTERCEPTOR_ENTER(ctx, getnetent);
7571 struct __sanitizer_netent *n = REAL(getnetent)();
7572 if (n) {
7573 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n));
7574
7575 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_name, REAL(strlen)(n->n_name) + 1);
7576
7577 SIZE_T nn_size = 1; // One handles the trailing \0
7578
7579 for (char **nn = n->n_aliases; *nn; ++nn, ++nn_size)
7580 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *nn, REAL(strlen)(*nn) + 1);
7581
7582 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_aliases,
7583 nn_size * sizeof(char **));
7584 }
7585 return n;
7586}
7587
7588INTERCEPTOR(struct __sanitizer_netent *, getnetbyname, const char *name) {
7589 void *ctx;
7590 COMMON_INTERCEPTOR_ENTER(ctx, getnetbyname, name);
7591 if (name)
7592 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
7593 struct __sanitizer_netent *n = REAL(getnetbyname)(name);
7594 if (n) {
7595 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n));
7596
7597 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_name, REAL(strlen)(n->n_name) + 1);
7598
7599 SIZE_T nn_size = 1; // One handles the trailing \0
7600
7601 for (char **nn = n->n_aliases; *nn; ++nn, ++nn_size)
7602 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *nn, REAL(strlen)(*nn) + 1);
7603
7604 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_aliases,
7605 nn_size * sizeof(char **));
7606 }
7607 return n;
7608}
7609
7610INTERCEPTOR(struct __sanitizer_netent *, getnetbyaddr, u32 net, int type) {
7611 void *ctx;
7612 COMMON_INTERCEPTOR_ENTER(ctx, getnetbyaddr, net, type);
7613 struct __sanitizer_netent *n = REAL(getnetbyaddr)(net, type);
7614 if (n) {
7615 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n));
7616
7617 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_name, REAL(strlen)(n->n_name) + 1);
7618
7619 SIZE_T nn_size = 1; // One handles the trailing \0
7620
7621 for (char **nn = n->n_aliases; *nn; ++nn, ++nn_size)
7622 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *nn, REAL(strlen)(*nn) + 1);
7623
7624 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_aliases,
7625 nn_size * sizeof(char **));
7626 }
7627 return n;
7628}
7629#define INIT_NETENT \
7630 COMMON_INTERCEPT_FUNCTION(getnetent); \
7631 COMMON_INTERCEPT_FUNCTION(getnetbyname); \
7632 COMMON_INTERCEPT_FUNCTION(getnetbyaddr)
7633#else
7634#define INIT_NETENT
7635#endif
7636
7637#if SANITIZER_INTERCEPT_GETMNTINFO
7638INTERCEPTOR(int, getmntinfo, void **mntbufp, int flags) {
7639 void *ctx;
7640 COMMON_INTERCEPTOR_ENTER(ctx, getmntinfo, mntbufp, flags);
7641 int cnt = REAL(getmntinfo)(mntbufp, flags);
7642 if (cnt > 0 && mntbufp) {
7643 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mntbufp, sizeof(void *));
7644 if (*mntbufp)
7645#if SANITIZER_NETBSD
7646 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *mntbufp, cnt * struct_statvfs_sz);
7647#else
7648 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *mntbufp, cnt * struct_statfs_sz);
7649#endif
7650 }
7651 return cnt;
7652}
7653#define INIT_GETMNTINFO COMMON_INTERCEPT_FUNCTION(getmntinfo)
7654#else
7655#define INIT_GETMNTINFO
7656#endif
7657
7658#if SANITIZER_INTERCEPT_MI_VECTOR_HASH
7659INTERCEPTOR(void, mi_vector_hash, const void *key, SIZE_T len, u32 seed,
7660 u32 hashes[3]) {
7661 void *ctx;
7662 COMMON_INTERCEPTOR_ENTER(ctx, mi_vector_hash, key, len, seed, hashes);
7663 if (key)
7664 COMMON_INTERCEPTOR_READ_RANGE(ctx, key, len);
7665 REAL(mi_vector_hash)(key, len, seed, hashes);
7666 if (hashes)
7667 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, hashes, sizeof(hashes[0]) * 3);
7668}
7669#define INIT_MI_VECTOR_HASH COMMON_INTERCEPT_FUNCTION(mi_vector_hash)
7670#else
7671#define INIT_MI_VECTOR_HASH
7672#endif
7673
7674#if SANITIZER_INTERCEPT_SETVBUF
7675INTERCEPTOR(int, setvbuf, __sanitizer_FILE *stream, char *buf, int mode,
7676 SIZE_T size) {
7677 void *ctx;
7678 COMMON_INTERCEPTOR_ENTER(ctx, setvbuf, stream, buf, mode, size);
7679 int ret = REAL(setvbuf)(stream, buf, mode, size);
7680 if (buf)
7681 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, size);
7682 if (stream)
7683 unpoison_file(stream);
7684 return ret;
7685}
7686
7687INTERCEPTOR(void, setbuf, __sanitizer_FILE *stream, char *buf) {
7688 void *ctx;
7689 COMMON_INTERCEPTOR_ENTER(ctx, setbuf, stream, buf);
7690 REAL(setbuf)(stream, buf);
7691 if (buf) {
7692 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer_bufsiz);
7693 }
7694 if (stream)
7695 unpoison_file(stream);
7696}
7697
7698INTERCEPTOR(void, setbuffer, __sanitizer_FILE *stream, char *buf, int mode) {
7699 void *ctx;
7700 COMMON_INTERCEPTOR_ENTER(ctx, setbuffer, stream, buf, mode);
7701 REAL(setbuffer)(stream, buf, mode);
7702 if (buf) {
7703 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer_bufsiz);
7704 }
7705 if (stream)
7706 unpoison_file(stream);
7707}
7708
7709INTERCEPTOR(void, setlinebuf, __sanitizer_FILE *stream) {
7710 void *ctx;
7711 COMMON_INTERCEPTOR_ENTER(ctx, setlinebuf, stream);
7712 REAL(setlinebuf)(stream);
7713 if (stream)
7714 unpoison_file(stream);
7715}
7716#define INIT_SETVBUF COMMON_INTERCEPT_FUNCTION(setvbuf); \
7717 COMMON_INTERCEPT_FUNCTION(setbuf); \
7718 COMMON_INTERCEPT_FUNCTION(setbuffer); \
7719 COMMON_INTERCEPT_FUNCTION(setlinebuf)
7720#else
7721#define INIT_SETVBUF
7722#endif
7723
7724#if SANITIZER_INTERCEPT_GETVFSSTAT
7725INTERCEPTOR(int, getvfsstat, void *buf, SIZE_T bufsize, int flags) {
7726 void *ctx;
7727 COMMON_INTERCEPTOR_ENTER(ctx, getvfsstat, buf, bufsize, flags);
7728 int ret = REAL(getvfsstat)(buf, bufsize, flags);
7729 if (buf && ret > 0)
7730 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, ret * struct_statvfs_sz);
7731 return ret;
7732}
7733#define INIT_GETVFSSTAT COMMON_INTERCEPT_FUNCTION(getvfsstat)
7734#else
7735#define INIT_GETVFSSTAT
7736#endif
7737
7738#if SANITIZER_INTERCEPT_REGEX
7739INTERCEPTOR(int, regcomp, void *preg, const char *pattern, int cflags) {
7740 void *ctx;
7741 COMMON_INTERCEPTOR_ENTER(ctx, regcomp, preg, pattern, cflags);
7742 if (pattern)
7743 COMMON_INTERCEPTOR_READ_RANGE(ctx, pattern, REAL(strlen)(pattern) + 1);
7744 int res = REAL(regcomp)(preg, pattern, cflags);
7745 if (!res)
7746 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, preg, struct_regex_sz);
7747 return res;
7748}
7749INTERCEPTOR(int, regexec, const void *preg, const char *string, SIZE_T nmatch,
7750 struct __sanitizer_regmatch *pmatch[], int eflags) {
7751 void *ctx;
7752 COMMON_INTERCEPTOR_ENTER(ctx, regexec, preg, string, nmatch, pmatch, eflags);
7753 if (preg)
7754 COMMON_INTERCEPTOR_READ_RANGE(ctx, preg, struct_regex_sz);
7755 if (string)
7756 COMMON_INTERCEPTOR_READ_RANGE(ctx, string, REAL(strlen)(string) + 1);
7757 int res = REAL(regexec)(preg, string, nmatch, pmatch, eflags);
7758 if (!res && pmatch)
7759 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pmatch, nmatch * struct_regmatch_sz);
7760 return res;
7761}
7762INTERCEPTOR(SIZE_T, regerror, int errcode, const void *preg, char *errbuf,
7763 SIZE_T errbuf_size) {
7764 void *ctx;
7765 COMMON_INTERCEPTOR_ENTER(ctx, regerror, errcode, preg, errbuf, errbuf_size);
7766 if (preg)
7767 COMMON_INTERCEPTOR_READ_RANGE(ctx, preg, struct_regex_sz);
7768 SIZE_T res = REAL(regerror)(errcode, preg, errbuf, errbuf_size);
7769 if (errbuf)
7770 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, errbuf, REAL(strlen)(errbuf) + 1);
7771 return res;
7772}
7773INTERCEPTOR(void, regfree, const void *preg) {
7774 void *ctx;
7775 COMMON_INTERCEPTOR_ENTER(ctx, regfree, preg);
7776 if (preg)
7777 COMMON_INTERCEPTOR_READ_RANGE(ctx, preg, struct_regex_sz);
7778 REAL(regfree)(preg);
7779}
7780#define INIT_REGEX \
7781 COMMON_INTERCEPT_FUNCTION(regcomp); \
7782 COMMON_INTERCEPT_FUNCTION(regexec); \
7783 COMMON_INTERCEPT_FUNCTION(regerror); \
7784 COMMON_INTERCEPT_FUNCTION(regfree);
7785#else
7786#define INIT_REGEX
7787#endif
7788
7789#if SANITIZER_INTERCEPT_REGEXSUB
7790INTERCEPTOR(SSIZE_T, regnsub, char *buf, SIZE_T bufsiz, const char *sub,
7791 const struct __sanitizer_regmatch *rm, const char *str) {
7792 void *ctx;
7793 COMMON_INTERCEPTOR_ENTER(ctx, regnsub, buf, bufsiz, sub, rm, str);
7794 if (sub)
7795 COMMON_INTERCEPTOR_READ_RANGE(ctx, sub, REAL(strlen)(sub) + 1);
7796 // The implementation demands and hardcodes 10 elements
7797 if (rm)
7798 COMMON_INTERCEPTOR_READ_RANGE(ctx, rm, 10 * struct_regmatch_sz);
7799 if (str)
7800 COMMON_INTERCEPTOR_READ_RANGE(ctx, str, REAL(strlen)(str) + 1);
7801 SSIZE_T res = REAL(regnsub)(buf, bufsiz, sub, rm, str);
7802 if (res > 0 && buf)
7803 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, REAL(strlen)(buf) + 1);
7804 return res;
7805}
7806INTERCEPTOR(SSIZE_T, regasub, char **buf, const char *sub,
7807 const struct __sanitizer_regmatch *rm, const char *sstr) {
7808 void *ctx;
7809 COMMON_INTERCEPTOR_ENTER(ctx, regasub, buf, sub, rm, sstr);
7810 if (sub)
7811 COMMON_INTERCEPTOR_READ_RANGE(ctx, sub, REAL(strlen)(sub) + 1);
7812 // Hardcode 10 elements as this is hardcoded size
7813 if (rm)
7814 COMMON_INTERCEPTOR_READ_RANGE(ctx, rm, 10 * struct_regmatch_sz);
7815 if (sstr)
7816 COMMON_INTERCEPTOR_READ_RANGE(ctx, sstr, REAL(strlen)(sstr) + 1);
7817 SSIZE_T res = REAL(regasub)(buf, sub, rm, sstr);
7818 if (res > 0 && buf) {
7819 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sizeof(char *));
7820 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *buf, REAL(strlen)(*buf) + 1);
7821 }
7822 return res;
7823}
7824
7825#define INIT_REGEXSUB \
7826 COMMON_INTERCEPT_FUNCTION(regnsub); \
7827 COMMON_INTERCEPT_FUNCTION(regasub);
7828#else
7829#define INIT_REGEXSUB
7830#endif
7831
7832#if SANITIZER_INTERCEPT_FTS
7833INTERCEPTOR(void *, fts_open, char *const *path_argv, int options,
7834 int (*compar)(void **, void **)) {
7835 void *ctx;
7836 COMMON_INTERCEPTOR_ENTER(ctx, fts_open, path_argv, options, compar);
7837 if (path_argv) {
7838 for (char *const *pa = path_argv; ; ++pa) {
7839 COMMON_INTERCEPTOR_READ_RANGE(ctx, pa, sizeof(char **));
7840 if (!*pa)
7841 break;
7842 COMMON_INTERCEPTOR_READ_RANGE(ctx, *pa, REAL(strlen)(*pa) + 1);
7843 }
7844 }
7845 // TODO(kamil): handle compar callback
7846 void *fts = REAL(fts_open)(path_argv, options, compar);
7847 if (fts)
7848 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, fts, struct_FTS_sz);
7849 return fts;
7850}
7851
7852INTERCEPTOR(void *, fts_read, void *ftsp) {
7853 void *ctx;
7854 COMMON_INTERCEPTOR_ENTER(ctx, fts_read, ftsp);
7855 if (ftsp)
7856 COMMON_INTERCEPTOR_READ_RANGE(ctx, ftsp, struct_FTS_sz);
7857 void *ftsent = REAL(fts_read)(ftsp);
7858 if (ftsent)
7859 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ftsent, struct_FTSENT_sz);
7860 return ftsent;
7861}
7862
7863INTERCEPTOR(void *, fts_children, void *ftsp, int options) {
7864 void *ctx;
7865 COMMON_INTERCEPTOR_ENTER(ctx, fts_children, ftsp, options);
7866 if (ftsp)
7867 COMMON_INTERCEPTOR_READ_RANGE(ctx, ftsp, struct_FTS_sz);
7868 void *ftsent = REAL(fts_children)(ftsp, options);
7869 if (ftsent)
7870 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ftsent, struct_FTSENT_sz);
7871 return ftsent;
7872}
7873
7874INTERCEPTOR(int, fts_set, void *ftsp, void *f, int options) {
7875 void *ctx;
7876 COMMON_INTERCEPTOR_ENTER(ctx, fts_set, ftsp, f, options);
7877 if (ftsp)
7878 COMMON_INTERCEPTOR_READ_RANGE(ctx, ftsp, struct_FTS_sz);
7879 if (f)
7880 COMMON_INTERCEPTOR_READ_RANGE(ctx, f, struct_FTSENT_sz);
7881 return REAL(fts_set)(ftsp, f, options);
7882}
7883
7884INTERCEPTOR(int, fts_close, void *ftsp) {
7885 void *ctx;
7886 COMMON_INTERCEPTOR_ENTER(ctx, fts_close, ftsp);
7887 if (ftsp)
7888 COMMON_INTERCEPTOR_READ_RANGE(ctx, ftsp, struct_FTS_sz);
7889 return REAL(fts_close)(ftsp);
7890}
7891#define INIT_FTS \
7892 COMMON_INTERCEPT_FUNCTION(fts_open); \
7893 COMMON_INTERCEPT_FUNCTION(fts_read); \
7894 COMMON_INTERCEPT_FUNCTION(fts_children); \
7895 COMMON_INTERCEPT_FUNCTION(fts_set); \
7896 COMMON_INTERCEPT_FUNCTION(fts_close);
7897#else
7898#define INIT_FTS
7899#endif
7900
7901#if SANITIZER_INTERCEPT_SYSCTL
7902INTERCEPTOR(int, sysctl, int *name, unsigned int namelen, void *oldp,
7903 SIZE_T *oldlenp, void *newp, SIZE_T newlen) {
7904 void *ctx;
7905 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
7906 return internal_sysctl(name, namelen, oldp, oldlenp, newp, newlen);
7907 COMMON_INTERCEPTOR_ENTER(ctx, sysctl, name, namelen, oldp, oldlenp, newp,
7908 newlen);
7909 if (name)
7910 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, namelen * sizeof(*name));
7911 if (oldlenp)
7912 COMMON_INTERCEPTOR_READ_RANGE(ctx, oldlenp, sizeof(*oldlenp));
7913 if (newp && newlen)
7914 COMMON_INTERCEPTOR_READ_RANGE(ctx, newp, newlen);
7915 int res = REAL(sysctl)(name, namelen, oldp, oldlenp, newp, newlen);
7916 if (!res) {
7917 if (oldlenp) {
7918 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldlenp, sizeof(*oldlenp));
7919 if (oldp)
7920 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldp, *oldlenp);
7921 }
7922 }
7923 return res;
7924}
7925
7926INTERCEPTOR(int, sysctlbyname, char *sname, void *oldp, SIZE_T *oldlenp,
7927 void *newp, SIZE_T newlen) {
7928 void *ctx;
7929 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
7930 return internal_sysctlbyname(sname, oldp, oldlenp, newp, newlen);
7931 COMMON_INTERCEPTOR_ENTER(ctx, sysctlbyname, sname, oldp, oldlenp, newp,
7932 newlen);
7933 if (sname)
7934 COMMON_INTERCEPTOR_READ_RANGE(ctx, sname, REAL(strlen)(sname) + 1);
7935 if (oldlenp)
7936 COMMON_INTERCEPTOR_READ_RANGE(ctx, oldlenp, sizeof(*oldlenp));
7937 if (newp && newlen)
7938 COMMON_INTERCEPTOR_READ_RANGE(ctx, newp, newlen);
7939 int res = REAL(sysctlbyname)(sname, oldp, oldlenp, newp, newlen);
7940 if (!res) {
7941 if (oldlenp) {
7942 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldlenp, sizeof(*oldlenp));
7943 if (oldp)
7944 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldp, *oldlenp);
7945 }
7946 }
7947 return res;
7948}
7949
7950INTERCEPTOR(int, sysctlnametomib, const char *sname, int *name,
7951 SIZE_T *namelenp) {
7952 void *ctx;
7953 COMMON_INTERCEPTOR_ENTER(ctx, sysctlnametomib, sname, name, namelenp);
7954 if (sname)
7955 COMMON_INTERCEPTOR_READ_RANGE(ctx, sname, REAL(strlen)(sname) + 1);
7956 if (namelenp)
7957 COMMON_INTERCEPTOR_READ_RANGE(ctx, namelenp, sizeof(*namelenp));
7958 int res = REAL(sysctlnametomib)(sname, name, namelenp);
7959 if (!res) {
7960 if (namelenp) {
7961 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelenp, sizeof(*namelenp));
7962 if (name)
7963 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, *namelenp * sizeof(*name));
7964 }
7965 }
7966 return res;
7967}
7968
7969#define INIT_SYSCTL \
7970 COMMON_INTERCEPT_FUNCTION(sysctl); \
7971 COMMON_INTERCEPT_FUNCTION(sysctlbyname); \
7972 COMMON_INTERCEPT_FUNCTION(sysctlnametomib);
7973#else
7974#define INIT_SYSCTL
7975#endif
7976
7977#if SANITIZER_INTERCEPT_ASYSCTL
7978INTERCEPTOR(void *, asysctl, const int *name, SIZE_T namelen, SIZE_T *len) {
7979 void *ctx;
7980 COMMON_INTERCEPTOR_ENTER(ctx, asysctl, name, namelen, len);
7981 if (name)
7982 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, sizeof(*name) * namelen);
7983 void *res = REAL(asysctl)(name, namelen, len);
7984 if (res && len) {
7985 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, len, sizeof(*len));
7986 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, *len);
7987 }
7988 return res;
7989}
7990
7991INTERCEPTOR(void *, asysctlbyname, const char *sname, SIZE_T *len) {
7992 void *ctx;
7993 COMMON_INTERCEPTOR_ENTER(ctx, asysctlbyname, sname, len);
7994 if (sname)
7995 COMMON_INTERCEPTOR_READ_RANGE(ctx, sname, REAL(strlen)(sname) + 1);
7996 void *res = REAL(asysctlbyname)(sname, len);
7997 if (res && len) {
7998 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, len, sizeof(*len));
7999 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, *len);
8000 }
8001 return res;
8002}
8003#define INIT_ASYSCTL \
8004 COMMON_INTERCEPT_FUNCTION(asysctl); \
8005 COMMON_INTERCEPT_FUNCTION(asysctlbyname);
8006#else
8007#define INIT_ASYSCTL
8008#endif
8009
8010#if SANITIZER_INTERCEPT_SYSCTLGETMIBINFO
8011INTERCEPTOR(int, sysctlgetmibinfo, char *sname, int *name,
8012 unsigned int *namelenp, char *cname, SIZE_T *csz, void **rnode,
8013 int v) {
8014 void *ctx;
8015 COMMON_INTERCEPTOR_ENTER(ctx, sysctlgetmibinfo, sname, name, namelenp, cname,
8016 csz, rnode, v);
8017 if (sname)
8018 COMMON_INTERCEPTOR_READ_RANGE(ctx, sname, REAL(strlen)(sname) + 1);
8019 if (namelenp)
8020 COMMON_INTERCEPTOR_READ_RANGE(ctx, namelenp, sizeof(*namelenp));
8021 if (csz)
8022 COMMON_INTERCEPTOR_READ_RANGE(ctx, csz, sizeof(*csz));
8023 // Skip rnode, it's rarely used and not trivial to sanitize
8024 // It's also used mostly internally
8025 int res = REAL(sysctlgetmibinfo)(sname, name, namelenp, cname, csz, rnode, v);
8026 if (!res) {
8027 if (namelenp) {
8028 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelenp, sizeof(*namelenp));
8029 if (name)
8030 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, *namelenp * sizeof(*name));
8031 }
8032 if (csz) {
8033 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, csz, sizeof(*csz));
8034 if (cname)
8035 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cname, *csz);
8036 }
8037 }
8038 return res;
8039}
8040#define INIT_SYSCTLGETMIBINFO \
8041 COMMON_INTERCEPT_FUNCTION(sysctlgetmibinfo);
8042#else
8043#define INIT_SYSCTLGETMIBINFO
8044#endif
8045
8046#if SANITIZER_INTERCEPT_NL_LANGINFO
8047INTERCEPTOR(char *, nl_langinfo, long item) {
8048 void *ctx;
8049 COMMON_INTERCEPTOR_ENTER(ctx, nl_langinfo, item);
8050 char *ret = REAL(nl_langinfo)(item);
8051 if (ret)
8052 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, REAL(strlen)(ret) + 1);
8053 return ret;
8054}
8055#define INIT_NL_LANGINFO COMMON_INTERCEPT_FUNCTION(nl_langinfo)
8056#else
8057#define INIT_NL_LANGINFO
8058#endif
8059
8060#if SANITIZER_INTERCEPT_MODCTL
8061INTERCEPTOR(int, modctl, int operation, void *argp) {
8062 void *ctx;
8063 int ret;
8064 COMMON_INTERCEPTOR_ENTER(ctx, modctl, operation, argp);
8065
8066 if (operation == modctl_load) {
8067 if (argp) {
8068 __sanitizer_modctl_load_t *ml = (__sanitizer_modctl_load_t *)argp;
8069 COMMON_INTERCEPTOR_READ_RANGE(ctx, ml, sizeof(*ml));
8070 if (ml->ml_filename)
8071 COMMON_INTERCEPTOR_READ_RANGE(ctx, ml->ml_filename,
8072 REAL(strlen)(ml->ml_filename) + 1);
8073 if (ml->ml_props)
8074 COMMON_INTERCEPTOR_READ_RANGE(ctx, ml->ml_props, ml->ml_propslen);
8075 }
8076 ret = REAL(modctl)(operation, argp);
8077 } else if (operation == modctl_unload) {
8078 if (argp) {
8079 const char *name = (const char *)argp;
8080 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
8081 }
8082 ret = REAL(modctl)(operation, argp);
8083 } else if (operation == modctl_stat) {
8084 uptr iov_len;
8085 struct __sanitizer_iovec *iov = (struct __sanitizer_iovec *)argp;
8086 if (iov) {
8087 COMMON_INTERCEPTOR_READ_RANGE(ctx, iov, sizeof(*iov));
8088 iov_len = iov->iov_len;
8089 }
8090 ret = REAL(modctl)(operation, argp);
8091 if (iov)
8092 COMMON_INTERCEPTOR_WRITE_RANGE(
8093 ctx, iov->iov_base, Min(iov_len, iov->iov_len));
8094 } else if (operation == modctl_exists) {
8095 ret = REAL(modctl)(operation, argp);
8096 } else {
8097 ret = REAL(modctl)(operation, argp);
8098 }
8099
8100 return ret;
8101}
8102#define INIT_MODCTL COMMON_INTERCEPT_FUNCTION(modctl)
8103#else
8104#define INIT_MODCTL
8105#endif
8106
8107#if SANITIZER_INTERCEPT_STRTONUM
8108INTERCEPTOR(long long, strtonum, const char *nptr, long long minval,
8109 long long maxval, const char **errstr) {
8110 void *ctx;
8111 COMMON_INTERCEPTOR_ENTER(ctx, strtonum, nptr, minval, maxval, errstr);
8112
8113 // TODO(kamil): Implement strtoll as a common inteceptor
8114 char *real_endptr;
8115 long long ret = (long long)REAL(strtoimax)(nptr, &real_endptr, 10);
8116 StrtolFixAndCheck(ctx, nptr, nullptr, real_endptr, 10);
8117
8118 ret = REAL(strtonum)(nptr, minval, maxval, errstr);
8119 if (errstr) {
8120 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, errstr, sizeof(const char *));
8121 if (*errstr)
8122 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *errstr, REAL(strlen)(*errstr) + 1);
8123 }
8124 return ret;
8125}
8126#define INIT_STRTONUM COMMON_INTERCEPT_FUNCTION(strtonum)
8127#else
8128#define INIT_STRTONUM
8129#endif
8130
8131#if SANITIZER_INTERCEPT_FPARSELN
8132INTERCEPTOR(char *, fparseln, __sanitizer_FILE *stream, SIZE_T *len,
8133 SIZE_T *lineno, const char delim[3], int flags) {
8134 void *ctx;
8135 COMMON_INTERCEPTOR_ENTER(ctx, fparseln, stream, len, lineno, delim, flags);
8136 if (lineno)
8137 COMMON_INTERCEPTOR_READ_RANGE(ctx, lineno, sizeof(*lineno));
8138 if (delim)
8139 COMMON_INTERCEPTOR_READ_RANGE(ctx, delim, sizeof(delim[0]) * 3);
8140 char *ret = REAL(fparseln)(stream, len, lineno, delim, flags);
8141 if (ret) {
8142 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, REAL(strlen)(ret) + 1);
8143 if (len)
8144 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, len, sizeof(*len));
8145 if (lineno)
8146 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineno, sizeof(*lineno));
8147 }
8148 return ret;
8149}
8150#define INIT_FPARSELN COMMON_INTERCEPT_FUNCTION(fparseln)
8151#else
8152#define INIT_FPARSELN
8153#endif
8154
8155#if SANITIZER_INTERCEPT_STATVFS1
8156INTERCEPTOR(int, statvfs1, const char *path, void *buf, int flags) {
8157 void *ctx;
8158 COMMON_INTERCEPTOR_ENTER(ctx, statvfs1, path, buf, flags);
8159 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
8160 int res = REAL(statvfs1)(path, buf, flags);
8161 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz);
8162 return res;
8163}
8164INTERCEPTOR(int, fstatvfs1, int fd, void *buf, int flags) {
8165 void *ctx;
8166 COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs1, fd, buf, flags);
8167 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
8168 int res = REAL(fstatvfs1)(fd, buf, flags);
8169 if (!res) {
8170 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz);
8171 if (fd >= 0)
8172 COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
8173 }
8174 return res;
8175}
8176#define INIT_STATVFS1 \
8177 COMMON_INTERCEPT_FUNCTION(statvfs1); \
8178 COMMON_INTERCEPT_FUNCTION(fstatvfs1);
8179#else
8180#define INIT_STATVFS1
8181#endif
8182
8183#if SANITIZER_INTERCEPT_STRTOI
8184INTERCEPTOR(INTMAX_T, strtoi, const char *nptr, char **endptr, int base,
8185 INTMAX_T low, INTMAX_T high, int *rstatus) {
8186 void *ctx;
8187 COMMON_INTERCEPTOR_ENTER(ctx, strtoi, nptr, endptr, base, low, high, rstatus);
8188 char *real_endptr;
8189 INTMAX_T ret = REAL(strtoi)(nptr, &real_endptr, base, low, high, rstatus);
8190 StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base);
8191 if (rstatus)
8192 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rstatus, sizeof(*rstatus));
8193 return ret;
8194}
8195
8196INTERCEPTOR(UINTMAX_T, strtou, const char *nptr, char **endptr, int base,
8197 UINTMAX_T low, UINTMAX_T high, int *rstatus) {
8198 void *ctx;
8199 COMMON_INTERCEPTOR_ENTER(ctx, strtou, nptr, endptr, base, low, high, rstatus);
8200 char *real_endptr;
8201 UINTMAX_T ret = REAL(strtou)(nptr, &real_endptr, base, low, high, rstatus);
8202 StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base);
8203 if (rstatus)
8204 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rstatus, sizeof(*rstatus));
8205 return ret;
8206}
8207#define INIT_STRTOI \
8208 COMMON_INTERCEPT_FUNCTION(strtoi); \
8209 COMMON_INTERCEPT_FUNCTION(strtou)
8210#else
8211#define INIT_STRTOI
8212#endif
8213
8214#if SANITIZER_INTERCEPT_CAPSICUM
8215#define CAP_RIGHTS_INIT_INTERCEPTOR(cap_rights_init, rights, ...) \
8216 { \
8217 void *ctx; \
8218 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_init, rights, ##__VA_ARGS__); \
8219 if (rights) \
8220 COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights)); \
8221 __sanitizer_cap_rights_t *ret = \
8222 REAL(cap_rights_init)(rights, ##__VA_ARGS__); \
8223 if (ret) \
8224 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, sizeof(*ret)); \
8225 return ret; \
8226 }
8227
8228#define CAP_RIGHTS_SET_INTERCEPTOR(cap_rights_set, rights, ...) \
8229 { \
8230 void *ctx; \
8231 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_set, rights, ##__VA_ARGS__); \
8232 if (rights) \
8233 COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights)); \
8234 __sanitizer_cap_rights_t *ret = \
8235 REAL(cap_rights_set)(rights, ##__VA_ARGS__); \
8236 if (ret) \
8237 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, sizeof(*ret)); \
8238 return ret; \
8239 }
8240
8241#define CAP_RIGHTS_CLEAR_INTERCEPTOR(cap_rights_clear, rights, ...) \
8242 { \
8243 void *ctx; \
8244 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_clear, rights, ##__VA_ARGS__); \
8245 if (rights) \
8246 COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights)); \
8247 __sanitizer_cap_rights_t *ret = \
8248 REAL(cap_rights_clear)(rights, ##__VA_ARGS__); \
8249 if (ret) \
8250 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, sizeof(*ret)); \
8251 return ret; \
8252 }
8253
8254#define CAP_RIGHTS_IS_SET_INTERCEPTOR(cap_rights_is_set, rights, ...) \
8255 { \
8256 void *ctx; \
8257 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_is_set, rights, ##__VA_ARGS__); \
8258 if (rights) \
8259 COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights)); \
8260 return REAL(cap_rights_is_set)(rights, ##__VA_ARGS__); \
8261 }
8262
8263INTERCEPTOR(__sanitizer_cap_rights_t *, cap_rights_init,
8264 __sanitizer_cap_rights_t *rights) {
8265 CAP_RIGHTS_INIT_INTERCEPTOR(cap_rights_init, rights);
8266}
8267
8268INTERCEPTOR(__sanitizer_cap_rights_t *, cap_rights_set,
8269 __sanitizer_cap_rights_t *rights) {
8270 CAP_RIGHTS_SET_INTERCEPTOR(cap_rights_set, rights);
8271}
8272
8273INTERCEPTOR(__sanitizer_cap_rights_t *, cap_rights_clear,
8274 __sanitizer_cap_rights_t *rights) {
8275 CAP_RIGHTS_CLEAR_INTERCEPTOR(cap_rights_clear, rights);
8276}
8277
8278INTERCEPTOR(bool, cap_rights_is_set,
8279 __sanitizer_cap_rights_t *rights) {
8280 CAP_RIGHTS_IS_SET_INTERCEPTOR(cap_rights_is_set, rights);
8281}
8282
8283INTERCEPTOR(int, cap_rights_limit, int fd,
8284 const __sanitizer_cap_rights_t *rights) {
8285 void *ctx;
8286 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_limit, fd, rights);
8287 if (rights)
8288 COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights));
8289
8290 return REAL(cap_rights_limit)(fd, rights);
8291}
8292
8293INTERCEPTOR(int, cap_rights_get, int fd, __sanitizer_cap_rights_t *rights) {
8294 void *ctx;
8295 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_get, fd, rights);
8296 int ret = REAL(cap_rights_get)(fd, rights);
8297 if (!ret && rights)
8298 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rights, sizeof(*rights));
8299
8300 return ret;
8301}
8302
8303INTERCEPTOR(bool, cap_rights_is_valid, const __sanitizer_cap_rights_t *rights) {
8304 void *ctx;
8305 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_is_valid, rights);
8306 if (rights)
8307 COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights));
8308
8309 return REAL(cap_rights_is_valid(rights));
8310}
8311
8312INTERCEPTOR(__sanitizer_cap_rights *, cap_rights_merge,
8313 __sanitizer_cap_rights *dst, const __sanitizer_cap_rights *src) {
8314 void *ctx;
8315 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_merge, dst, src);
8316 if (src)
8317 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src));
8318
8319 __sanitizer_cap_rights *ret = REAL(cap_rights_merge)(dst, src);
8320 if (dst)
8321 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sizeof(*dst));
8322
8323 return ret;
8324}
8325
8326INTERCEPTOR(__sanitizer_cap_rights *, cap_rights_remove,
8327 __sanitizer_cap_rights *dst, const __sanitizer_cap_rights *src) {
8328 void *ctx;
8329 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_remove, dst, src);
8330 if (src)
8331 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src));
8332
8333 __sanitizer_cap_rights *ret = REAL(cap_rights_remove)(dst, src);
8334 if (dst)
8335 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sizeof(*dst));
8336
8337 return ret;
8338}
8339
8340INTERCEPTOR(bool, cap_rights_contains, const __sanitizer_cap_rights *big,
8341 const __sanitizer_cap_rights *little) {
8342 void *ctx;
8343 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_contains, big, little);
8344 if (little)
8345 COMMON_INTERCEPTOR_READ_RANGE(ctx, little, sizeof(*little));
8346 if (big)
8347 COMMON_INTERCEPTOR_READ_RANGE(ctx, big, sizeof(*big));
8348
8349 return REAL(cap_rights_contains)(big, little);
8350}
8351
8352INTERCEPTOR(int, cap_ioctls_limit, int fd, const uptr *cmds, SIZE_T ncmds) {
8353 void *ctx;
8354 COMMON_INTERCEPTOR_ENTER(ctx, cap_ioctls_limit, fd, cmds, ncmds);
8355 if (cmds)
8356 COMMON_INTERCEPTOR_READ_RANGE(ctx, cmds, sizeof(*cmds) * ncmds);
8357
8358 return REAL(cap_ioctls_limit)(fd, cmds, ncmds);
8359}
8360
8361INTERCEPTOR(int, cap_ioctls_get, int fd, uptr *cmds, SIZE_T maxcmds) {
8362 void *ctx;
8363 COMMON_INTERCEPTOR_ENTER(ctx, cap_ioctls_get, fd, cmds, maxcmds);
8364 int ret = REAL(cap_ioctls_get)(fd, cmds, maxcmds);
8365 if (!ret && cmds)
8366 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cmds, sizeof(*cmds) * maxcmds);
8367
8368 return ret;
8369}
8370#define INIT_CAPSICUM \
8371 COMMON_INTERCEPT_FUNCTION(cap_rights_init); \
8372 COMMON_INTERCEPT_FUNCTION(cap_rights_set); \
8373 COMMON_INTERCEPT_FUNCTION(cap_rights_clear); \
8374 COMMON_INTERCEPT_FUNCTION(cap_rights_is_set); \
8375 COMMON_INTERCEPT_FUNCTION(cap_rights_get); \
8376 COMMON_INTERCEPT_FUNCTION(cap_rights_limit); \
8377 COMMON_INTERCEPT_FUNCTION(cap_rights_contains); \
8378 COMMON_INTERCEPT_FUNCTION(cap_rights_remove); \
8379 COMMON_INTERCEPT_FUNCTION(cap_rights_merge); \
8380 COMMON_INTERCEPT_FUNCTION(cap_rights_is_valid); \
8381 COMMON_INTERCEPT_FUNCTION(cap_ioctls_get); \
8382 COMMON_INTERCEPT_FUNCTION(cap_ioctls_limit)
8383#else
8384#define INIT_CAPSICUM
8385#endif
8386
8387#if SANITIZER_INTERCEPT_SHA1
8388INTERCEPTOR(void, SHA1Init, void *context) {
8389 void *ctx;
8390 COMMON_INTERCEPTOR_ENTER(ctx, SHA1Init, context);
8391 REAL(SHA1Init)(context);
8392 if (context)
8393 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, SHA1_CTX_sz);
8394}
8395INTERCEPTOR(void, SHA1Update, void *context, const u8 *data, unsigned len) {
8396 void *ctx;
8397 COMMON_INTERCEPTOR_ENTER(ctx, SHA1Update, context, data, len);
8398 if (data && len > 0)
8399 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
8400 if (context)
8401 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA1_CTX_sz);
8402 REAL(SHA1Update)(context, data, len);
8403 if (context)
8404 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, SHA1_CTX_sz);
8405}
8406INTERCEPTOR(void, SHA1Final, u8 digest[20], void *context) {
8407 void *ctx;
8408 COMMON_INTERCEPTOR_ENTER(ctx, SHA1Final, digest, context);
8409 if (context)
8410 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA1_CTX_sz);
8411 REAL(SHA1Final)(digest, context);
8412 if (digest)
8413 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(u8) * 20);
8414}
8415INTERCEPTOR(void, SHA1Transform, u32 state[5], u8 buffer[64]) {
8416 void *ctx;
8417 COMMON_INTERCEPTOR_ENTER(ctx, SHA1Transform, state, buffer);
8418 if (state)
8419 COMMON_INTERCEPTOR_READ_RANGE(ctx, state, sizeof(u32) * 5);
8420 if (buffer)
8421 COMMON_INTERCEPTOR_READ_RANGE(ctx, buffer, sizeof(u8) * 64);
8422 REAL(SHA1Transform)(state, buffer);
8423 if (state)
8424 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, state, sizeof(u32) * 5);
8425}
8426INTERCEPTOR(char *, SHA1End, void *context, char *buf) {
8427 void *ctx;
8428 COMMON_INTERCEPTOR_ENTER(ctx, SHA1End, context, buf);
8429 if (context)
8430 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA1_CTX_sz);
8431 char *ret = REAL(SHA1End)(context, buf);
8432 if (ret)
8433 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA1_return_length);
8434 return ret;
8435}
8436INTERCEPTOR(char *, SHA1File, char *filename, char *buf) {
8437 void *ctx;
8438 COMMON_INTERCEPTOR_ENTER(ctx, SHA1File, filename, buf);
8439 if (filename)
8440 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);
8441 char *ret = REAL(SHA1File)(filename, buf);
8442 if (ret)
8443 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA1_return_length);
8444 return ret;
8445}
8446INTERCEPTOR(char *, SHA1FileChunk, char *filename, char *buf, OFF_T offset,
8447 OFF_T length) {
8448 void *ctx;
8449 COMMON_INTERCEPTOR_ENTER(ctx, SHA1FileChunk, filename, buf, offset, length);
8450 if (filename)
8451 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);
8452 char *ret = REAL(SHA1FileChunk)(filename, buf, offset, length);
8453 if (ret)
8454 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA1_return_length);
8455 return ret;
8456}
8457INTERCEPTOR(char *, SHA1Data, u8 *data, SIZE_T len, char *buf) {
8458 void *ctx;
8459 COMMON_INTERCEPTOR_ENTER(ctx, SHA1Data, data, len, buf);
8460 if (data)
8461 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
8462 char *ret = REAL(SHA1Data)(data, len, buf);
8463 if (ret)
8464 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA1_return_length);
8465 return ret;
8466}
8467#define INIT_SHA1 \
8468 COMMON_INTERCEPT_FUNCTION(SHA1Init); \
8469 COMMON_INTERCEPT_FUNCTION(SHA1Update); \
8470 COMMON_INTERCEPT_FUNCTION(SHA1Final); \
8471 COMMON_INTERCEPT_FUNCTION(SHA1Transform); \
8472 COMMON_INTERCEPT_FUNCTION(SHA1End); \
8473 COMMON_INTERCEPT_FUNCTION(SHA1File); \
8474 COMMON_INTERCEPT_FUNCTION(SHA1FileChunk); \
8475 COMMON_INTERCEPT_FUNCTION(SHA1Data)
8476#else
8477#define INIT_SHA1
8478#endif
8479
8480#if SANITIZER_INTERCEPT_MD4
8481INTERCEPTOR(void, MD4Init, void *context) {
8482 void *ctx;
8483 COMMON_INTERCEPTOR_ENTER(ctx, MD4Init, context);
8484 REAL(MD4Init)(context);
8485 if (context)
8486 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD4_CTX_sz);
8487}
8488
8489INTERCEPTOR(void, MD4Update, void *context, const unsigned char *data,
8490 unsigned int len) {
8491 void *ctx;
8492 COMMON_INTERCEPTOR_ENTER(ctx, MD4Update, context, data, len);
8493 if (data && len > 0)
8494 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
8495 if (context)
8496 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD4_CTX_sz);
8497 REAL(MD4Update)(context, data, len);
8498 if (context)
8499 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD4_CTX_sz);
8500}
8501
8502INTERCEPTOR(void, MD4Final, unsigned char digest[16], void *context) {
8503 void *ctx;
8504 COMMON_INTERCEPTOR_ENTER(ctx, MD4Final, digest, context);
8505 if (context)
8506 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD4_CTX_sz);
8507 REAL(MD4Final)(digest, context);
8508 if (digest)
8509 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(unsigned char) * 16);
8510}
8511
8512INTERCEPTOR(char *, MD4End, void *context, char *buf) {
8513 void *ctx;
8514 COMMON_INTERCEPTOR_ENTER(ctx, MD4End, context, buf);
8515 if (context)
8516 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD4_CTX_sz);
8517 char *ret = REAL(MD4End)(context, buf);
8518 if (ret)
8519 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD4_return_length);
8520 return ret;
8521}
8522
8523INTERCEPTOR(char *, MD4File, const char *filename, char *buf) {
8524 void *ctx;
8525 COMMON_INTERCEPTOR_ENTER(ctx, MD4File, filename, buf);
8526 if (filename)
8527 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);
8528 char *ret = REAL(MD4File)(filename, buf);
8529 if (ret)
8530 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD4_return_length);
8531 return ret;
8532}
8533
8534INTERCEPTOR(char *, MD4Data, const unsigned char *data, unsigned int len,
8535 char *buf) {
8536 void *ctx;
8537 COMMON_INTERCEPTOR_ENTER(ctx, MD4Data, data, len, buf);
8538 if (data && len > 0)
8539 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
8540 char *ret = REAL(MD4Data)(data, len, buf);
8541 if (ret)
8542 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD4_return_length);
8543 return ret;
8544}
8545
8546#define INIT_MD4 \
8547 COMMON_INTERCEPT_FUNCTION(MD4Init); \
8548 COMMON_INTERCEPT_FUNCTION(MD4Update); \
8549 COMMON_INTERCEPT_FUNCTION(MD4Final); \
8550 COMMON_INTERCEPT_FUNCTION(MD4End); \
8551 COMMON_INTERCEPT_FUNCTION(MD4File); \
8552 COMMON_INTERCEPT_FUNCTION(MD4Data)
8553#else
8554#define INIT_MD4
8555#endif
8556
8557#if SANITIZER_INTERCEPT_RMD160
8558INTERCEPTOR(void, RMD160Init, void *context) {
8559 void *ctx;
8560 COMMON_INTERCEPTOR_ENTER(ctx, RMD160Init, context);
8561 REAL(RMD160Init)(context);
8562 if (context)
8563 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, RMD160_CTX_sz);
8564}
8565INTERCEPTOR(void, RMD160Update, void *context, const u8 *data, unsigned len) {
8566 void *ctx;
8567 COMMON_INTERCEPTOR_ENTER(ctx, RMD160Update, context, data, len);
8568 if (data && len > 0)
8569 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
8570 if (context)
8571 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, RMD160_CTX_sz);
8572 REAL(RMD160Update)(context, data, len);
8573 if (context)
8574 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, RMD160_CTX_sz);
8575}
8576INTERCEPTOR(void, RMD160Final, u8 digest[20], void *context) {
8577 void *ctx;
8578 COMMON_INTERCEPTOR_ENTER(ctx, RMD160Final, digest, context);
8579 if (context)
8580 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, RMD160_CTX_sz);
8581 REAL(RMD160Final)(digest, context);
8582 if (digest)
8583 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(u8) * 20);
8584}
8585INTERCEPTOR(void, RMD160Transform, u32 state[5], u16 buffer[16]) {
8586 void *ctx;
8587 COMMON_INTERCEPTOR_ENTER(ctx, RMD160Transform, state, buffer);
8588 if (state)
8589 COMMON_INTERCEPTOR_READ_RANGE(ctx, state, sizeof(u32) * 5);
8590 if (buffer)
8591 COMMON_INTERCEPTOR_READ_RANGE(ctx, buffer, sizeof(u32) * 16);
8592 REAL(RMD160Transform)(state, buffer);
8593 if (state)
8594 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, state, sizeof(u32) * 5);
8595}
8596INTERCEPTOR(char *, RMD160End, void *context, char *buf) {
8597 void *ctx;
8598 COMMON_INTERCEPTOR_ENTER(ctx, RMD160End, context, buf);
8599 if (context)
8600 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, RMD160_CTX_sz);
8601 char *ret = REAL(RMD160End)(context, buf);
8602 if (ret)
8603 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, RMD160_return_length);
8604 return ret;
8605}
8606INTERCEPTOR(char *, RMD160File, char *filename, char *buf) {
8607 void *ctx;
8608 COMMON_INTERCEPTOR_ENTER(ctx, RMD160File, filename, buf);
8609 if (filename)
8610 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);
8611 char *ret = REAL(RMD160File)(filename, buf);
8612 if (ret)
8613 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, RMD160_return_length);
8614 return ret;
8615}
8616INTERCEPTOR(char *, RMD160FileChunk, char *filename, char *buf, OFF_T offset,
8617 OFF_T length) {
8618 void *ctx;
8619 COMMON_INTERCEPTOR_ENTER(ctx, RMD160FileChunk, filename, buf, offset, length);
8620 if (filename)
8621 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);
8622 char *ret = REAL(RMD160FileChunk)(filename, buf, offset, length);
8623 if (ret)
8624 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, RMD160_return_length);
8625 return ret;
8626}
8627INTERCEPTOR(char *, RMD160Data, u8 *data, SIZE_T len, char *buf) {
8628 void *ctx;
8629 COMMON_INTERCEPTOR_ENTER(ctx, RMD160Data, data, len, buf);
8630 if (data && len > 0)
8631 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
8632 char *ret = REAL(RMD160Data)(data, len, buf);
8633 if (ret)
8634 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, RMD160_return_length);
8635 return ret;
8636}
8637#define INIT_RMD160 \
8638 COMMON_INTERCEPT_FUNCTION(RMD160Init); \
8639 COMMON_INTERCEPT_FUNCTION(RMD160Update); \
8640 COMMON_INTERCEPT_FUNCTION(RMD160Final); \
8641 COMMON_INTERCEPT_FUNCTION(RMD160Transform); \
8642 COMMON_INTERCEPT_FUNCTION(RMD160End); \
8643 COMMON_INTERCEPT_FUNCTION(RMD160File); \
8644 COMMON_INTERCEPT_FUNCTION(RMD160FileChunk); \
8645 COMMON_INTERCEPT_FUNCTION(RMD160Data)
8646#else
8647#define INIT_RMD160
8648#endif
8649
8650#if SANITIZER_INTERCEPT_MD5
8651INTERCEPTOR(void, MD5Init, void *context) {
8652 void *ctx;
8653 COMMON_INTERCEPTOR_ENTER(ctx, MD5Init, context);
8654 REAL(MD5Init)(context);
8655 if (context)
8656 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD5_CTX_sz);
8657}
8658
8659INTERCEPTOR(void, MD5Update, void *context, const unsigned char *data,
8660 unsigned int len) {
8661 void *ctx;
8662 COMMON_INTERCEPTOR_ENTER(ctx, MD5Update, context, data, len);
8663 if (data && len > 0)
8664 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
8665 if (context)
8666 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD5_CTX_sz);
8667 REAL(MD5Update)(context, data, len);
8668 if (context)
8669 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD5_CTX_sz);
8670}
8671
8672INTERCEPTOR(void, MD5Final, unsigned char digest[16], void *context) {
8673 void *ctx;
8674 COMMON_INTERCEPTOR_ENTER(ctx, MD5Final, digest, context);
8675 if (context)
8676 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD5_CTX_sz);
8677 REAL(MD5Final)(digest, context);
8678 if (digest)
8679 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(unsigned char) * 16);
8680}
8681
8682INTERCEPTOR(char *, MD5End, void *context, char *buf) {
8683 void *ctx;
8684 COMMON_INTERCEPTOR_ENTER(ctx, MD5End, context, buf);
8685 if (context)
8686 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD5_CTX_sz);
8687 char *ret = REAL(MD5End)(context, buf);
8688 if (ret)
8689 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD5_return_length);
8690 return ret;
8691}
8692
8693INTERCEPTOR(char *, MD5File, const char *filename, char *buf) {
8694 void *ctx;
8695 COMMON_INTERCEPTOR_ENTER(ctx, MD5File, filename, buf);
8696 if (filename)
8697 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);
8698 char *ret = REAL(MD5File)(filename, buf);
8699 if (ret)
8700 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD5_return_length);
8701 return ret;
8702}
8703
8704INTERCEPTOR(char *, MD5Data, const unsigned char *data, unsigned int len,
8705 char *buf) {
8706 void *ctx;
8707 COMMON_INTERCEPTOR_ENTER(ctx, MD5Data, data, len, buf);
8708 if (data && len > 0)
8709 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
8710 char *ret = REAL(MD5Data)(data, len, buf);
8711 if (ret)
8712 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD5_return_length);
8713 return ret;
8714}
8715
8716#define INIT_MD5 \
8717 COMMON_INTERCEPT_FUNCTION(MD5Init); \
8718 COMMON_INTERCEPT_FUNCTION(MD5Update); \
8719 COMMON_INTERCEPT_FUNCTION(MD5Final); \
8720 COMMON_INTERCEPT_FUNCTION(MD5End); \
8721 COMMON_INTERCEPT_FUNCTION(MD5File); \
8722 COMMON_INTERCEPT_FUNCTION(MD5Data)
8723#else
8724#define INIT_MD5
8725#endif
8726
8727#if SANITIZER_INTERCEPT_FSEEK
8728INTERCEPTOR(int, fseek, __sanitizer_FILE *stream, long int offset, int whence) {
8729 void *ctx;
8730 COMMON_INTERCEPTOR_ENTER(ctx, fseek, stream, offset, whence);
8731 return REAL(fseek)(stream, offset, whence);
8732}
8733INTERCEPTOR(int, fseeko, __sanitizer_FILE *stream, OFF_T offset, int whence) {
8734 void *ctx;
8735 COMMON_INTERCEPTOR_ENTER(ctx, fseeko, stream, offset, whence);
8736 return REAL(fseeko)(stream, offset, whence);
8737}
8738INTERCEPTOR(long int, ftell, __sanitizer_FILE *stream) {
8739 void *ctx;
8740 COMMON_INTERCEPTOR_ENTER(ctx, ftell, stream);
8741 return REAL(ftell)(stream);
8742}
8743INTERCEPTOR(OFF_T, ftello, __sanitizer_FILE *stream) {
8744 void *ctx;
8745 COMMON_INTERCEPTOR_ENTER(ctx, ftello, stream);
8746 return REAL(ftello)(stream);
8747}
8748INTERCEPTOR(void, rewind, __sanitizer_FILE *stream) {
8749 void *ctx;
8750 COMMON_INTERCEPTOR_ENTER(ctx, rewind, stream);
8751 return REAL(rewind)(stream);
8752}
8753INTERCEPTOR(int, fgetpos, __sanitizer_FILE *stream, void *pos) {
8754 void *ctx;
8755 COMMON_INTERCEPTOR_ENTER(ctx, fgetpos, stream, pos);
8756 int ret = REAL(fgetpos)(stream, pos);
8757 if (pos && !ret)
8758 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pos, fpos_t_sz);
8759 return ret;
8760}
8761INTERCEPTOR(int, fsetpos, __sanitizer_FILE *stream, const void *pos) {
8762 void *ctx;
8763 COMMON_INTERCEPTOR_ENTER(ctx, fsetpos, stream, pos);
8764 if (pos)
8765 COMMON_INTERCEPTOR_READ_RANGE(ctx, pos, fpos_t_sz);
8766 return REAL(fsetpos)(stream, pos);
8767}
8768#define INIT_FSEEK \
8769 COMMON_INTERCEPT_FUNCTION(fseek); \
8770 COMMON_INTERCEPT_FUNCTION(fseeko); \
8771 COMMON_INTERCEPT_FUNCTION(ftell); \
8772 COMMON_INTERCEPT_FUNCTION(ftello); \
8773 COMMON_INTERCEPT_FUNCTION(rewind); \
8774 COMMON_INTERCEPT_FUNCTION(fgetpos); \
8775 COMMON_INTERCEPT_FUNCTION(fsetpos)
8776#else
8777#define INIT_FSEEK
8778#endif
8779
8780#if SANITIZER_INTERCEPT_MD2
8781INTERCEPTOR(void, MD2Init, void *context) {
8782 void *ctx;
8783 COMMON_INTERCEPTOR_ENTER(ctx, MD2Init, context);
8784 REAL(MD2Init)(context);
8785 if (context)
8786 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD2_CTX_sz);
8787}
8788
8789INTERCEPTOR(void, MD2Update, void *context, const unsigned char *data,
8790 unsigned int len) {
8791 void *ctx;
8792 COMMON_INTERCEPTOR_ENTER(ctx, MD2Update, context, data, len);
8793 if (data && len > 0)
8794 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
8795 if (context)
8796 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD2_CTX_sz);
8797 REAL(MD2Update)(context, data, len);
8798 if (context)
8799 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD2_CTX_sz);
8800}
8801
8802INTERCEPTOR(void, MD2Final, unsigned char digest[16], void *context) {
8803 void *ctx;
8804 COMMON_INTERCEPTOR_ENTER(ctx, MD2Final, digest, context);
8805 if (context)
8806 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD2_CTX_sz);
8807 REAL(MD2Final)(digest, context);
8808 if (digest)
8809 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(unsigned char) * 16);
8810}
8811
8812INTERCEPTOR(char *, MD2End, void *context, char *buf) {
8813 void *ctx;
8814 COMMON_INTERCEPTOR_ENTER(ctx, MD2End, context, buf);
8815 if (context)
8816 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD2_CTX_sz);
8817 char *ret = REAL(MD2End)(context, buf);
8818 if (ret)
8819 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD2_return_length);
8820 return ret;
8821}
8822
8823INTERCEPTOR(char *, MD2File, const char *filename, char *buf) {
8824 void *ctx;
8825 COMMON_INTERCEPTOR_ENTER(ctx, MD2File, filename, buf);
8826 if (filename)
8827 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);
8828 char *ret = REAL(MD2File)(filename, buf);
8829 if (ret)
8830 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD2_return_length);
8831 return ret;
8832}
8833
8834INTERCEPTOR(char *, MD2Data, const unsigned char *data, unsigned int len,
8835 char *buf) {
8836 void *ctx;
8837 COMMON_INTERCEPTOR_ENTER(ctx, MD2Data, data, len, buf);
8838 if (data && len > 0)
8839 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
8840 char *ret = REAL(MD2Data)(data, len, buf);
8841 if (ret)
8842 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD2_return_length);
8843 return ret;
8844}
8845
8846#define INIT_MD2 \
8847 COMMON_INTERCEPT_FUNCTION(MD2Init); \
8848 COMMON_INTERCEPT_FUNCTION(MD2Update); \
8849 COMMON_INTERCEPT_FUNCTION(MD2Final); \
8850 COMMON_INTERCEPT_FUNCTION(MD2End); \
8851 COMMON_INTERCEPT_FUNCTION(MD2File); \
8852 COMMON_INTERCEPT_FUNCTION(MD2Data)
8853#else
8854#define INIT_MD2
8855#endif
8856
8857#if SANITIZER_INTERCEPT_SHA2
8858#define SHA2_INTERCEPTORS(LEN, SHA2_STATE_T) \
8859 INTERCEPTOR(void, SHA##LEN##_Init, void *context) { \
8860 void *ctx; \
8861 COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_Init, context); \
8862 REAL(SHA##LEN##_Init)(context); \
8863 if (context) \
8864 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, SHA##LEN##_CTX_sz); \
8865 } \
8866 INTERCEPTOR(void, SHA##LEN##_Update, void *context, \
8867 const u8 *data, SIZE_T len) { \
8868 void *ctx; \
8869 COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_Update, context, data, len); \
8870 if (data && len > 0) \
8871 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); \
8872 if (context) \
8873 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA##LEN##_CTX_sz); \
8874 REAL(SHA##LEN##_Update)(context, data, len); \
8875 if (context) \
8876 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, SHA##LEN##_CTX_sz); \
8877 } \
8878 INTERCEPTOR(void, SHA##LEN##_Final, u8 digest[LEN/8], \
8879 void *context) { \
8880 void *ctx; \
8881 CHECK_EQ(SHA##LEN##_digest_length, LEN/8); \
8882 COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_Final, digest, context); \
8883 if (context) \
8884 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA##LEN##_CTX_sz); \
8885 REAL(SHA##LEN##_Final)(digest, context); \
8886 if (digest) \
8887 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, \
8888 sizeof(digest[0]) * \
8889 SHA##LEN##_digest_length); \
8890 } \
8891 INTERCEPTOR(char *, SHA##LEN##_End, void *context, char *buf) { \
8892 void *ctx; \
8893 COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_End, context, buf); \
8894 if (context) \
8895 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA##LEN##_CTX_sz); \
8896 char *ret = REAL(SHA##LEN##_End)(context, buf); \
8897 if (ret) \
8898 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA##LEN##_return_length); \
8899 return ret; \
8900 } \
8901 INTERCEPTOR(char *, SHA##LEN##_File, const char *filename, char *buf) { \
8902 void *ctx; \
8903 COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_File, filename, buf); \
8904 if (filename) \
8905 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);\
8906 char *ret = REAL(SHA##LEN##_File)(filename, buf); \
8907 if (ret) \
8908 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA##LEN##_return_length); \
8909 return ret; \
8910 } \
8911 INTERCEPTOR(char *, SHA##LEN##_FileChunk, const char *filename, char *buf, \
8912 OFF_T offset, OFF_T length) { \
8913 void *ctx; \
8914 COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_FileChunk, filename, buf, offset, \
8915 length); \
8916 if (filename) \
8917 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);\
8918 char *ret = REAL(SHA##LEN##_FileChunk)(filename, buf, offset, length); \
8919 if (ret) \
8920 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA##LEN##_return_length); \
8921 return ret; \
8922 } \
8923 INTERCEPTOR(char *, SHA##LEN##_Data, u8 *data, SIZE_T len, char *buf) { \
8924 void *ctx; \
8925 COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_Data, data, len, buf); \
8926 if (data && len > 0) \
8927 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); \
8928 char *ret = REAL(SHA##LEN##_Data)(data, len, buf); \
8929 if (ret) \
8930 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA##LEN##_return_length); \
8931 return ret; \
8932 }
8933
8934SHA2_INTERCEPTORS(224, u32);
8935SHA2_INTERCEPTORS(256, u32);
8936SHA2_INTERCEPTORS(384, u64);
8937SHA2_INTERCEPTORS(512, u64);
8938
8939#define INIT_SHA2_INTECEPTORS(LEN) \
8940 COMMON_INTERCEPT_FUNCTION(SHA##LEN##_Init); \
8941 COMMON_INTERCEPT_FUNCTION(SHA##LEN##_Update); \
8942 COMMON_INTERCEPT_FUNCTION(SHA##LEN##_Final); \
8943 COMMON_INTERCEPT_FUNCTION(SHA##LEN##_End); \
8944 COMMON_INTERCEPT_FUNCTION(SHA##LEN##_File); \
8945 COMMON_INTERCEPT_FUNCTION(SHA##LEN##_FileChunk); \
8946 COMMON_INTERCEPT_FUNCTION(SHA##LEN##_Data)
8947
8948#define INIT_SHA2 \
8949 INIT_SHA2_INTECEPTORS(224); \
8950 INIT_SHA2_INTECEPTORS(256); \
8951 INIT_SHA2_INTECEPTORS(384); \
8952 INIT_SHA2_INTECEPTORS(512)
8953#undef SHA2_INTERCEPTORS
8954#else
8955#define INIT_SHA2
8956#endif
8957
8958#if SANITIZER_INTERCEPT_VIS
8959INTERCEPTOR(char *, vis, char *dst, int c, int flag, int nextc) {
8960 void *ctx;
8961 COMMON_INTERCEPTOR_ENTER(ctx, vis, dst, c, flag, nextc);
8962 char *end = REAL(vis)(dst, c, flag, nextc);
8963 // dst is NULL terminated and end points to the NULL char
8964 if (dst && end)
8965 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, end - dst + 1);
8966 return end;
8967}
8968INTERCEPTOR(char *, nvis, char *dst, SIZE_T dlen, int c, int flag, int nextc) {
8969 void *ctx;
8970 COMMON_INTERCEPTOR_ENTER(ctx, nvis, dst, dlen, c, flag, nextc);
8971 char *end = REAL(nvis)(dst, dlen, c, flag, nextc);
8972 // nvis cannot make sure the dst is NULL terminated
8973 if (dst && end)
8974 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, end - dst + 1);
8975 return end;
8976}
8977INTERCEPTOR(int, strvis, char *dst, const char *src, int flag) {
8978 void *ctx;
8979 COMMON_INTERCEPTOR_ENTER(ctx, strvis, dst, src, flag);
8980 if (src)
8981 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
8982 int len = REAL(strvis)(dst, src, flag);
8983 if (dst)
8984 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, len + 1);
8985 return len;
8986}
8987INTERCEPTOR(int, stravis, char **dst, const char *src, int flag) {
8988 void *ctx;
8989 COMMON_INTERCEPTOR_ENTER(ctx, stravis, dst, src, flag);
8990 if (src)
8991 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
8992 int len = REAL(stravis)(dst, src, flag);
8993 if (dst) {
8994 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sizeof(char *));
8995 if (*dst)
8996 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *dst, len + 1);
8997 }
8998 return len;
8999}
9000INTERCEPTOR(int, strnvis, char *dst, SIZE_T dlen, const char *src, int flag) {
9001 void *ctx;
9002 COMMON_INTERCEPTOR_ENTER(ctx, strnvis, dst, dlen, src, flag);
9003 if (src)
9004 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
9005 int len = REAL(strnvis)(dst, dlen, src, flag);
9006 // The interface will be valid even if there is no space for NULL char
9007 if (dst && len > 0)
9008 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, len + 1);
9009 return len;
9010}
9011INTERCEPTOR(int, strvisx, char *dst, const char *src, SIZE_T len, int flag) {
9012 void *ctx;
9013 COMMON_INTERCEPTOR_ENTER(ctx, strvisx, dst, src, len, flag);
9014 if (src)
9015 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len);
9016 int ret = REAL(strvisx)(dst, src, len, flag);
9017 if (dst)
9018 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
9019 return ret;
9020}
9021INTERCEPTOR(int, strnvisx, char *dst, SIZE_T dlen, const char *src, SIZE_T len,
9022 int flag) {
9023 void *ctx;
9024 COMMON_INTERCEPTOR_ENTER(ctx, strnvisx, dst, dlen, src, len, flag);
9025 if (src)
9026 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len);
9027 int ret = REAL(strnvisx)(dst, dlen, src, len, flag);
9028 if (dst && ret >= 0)
9029 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
9030 return ret;
9031}
9032INTERCEPTOR(int, strenvisx, char *dst, SIZE_T dlen, const char *src, SIZE_T len,
9033 int flag, int *cerr_ptr) {
9034 void *ctx;
9035 COMMON_INTERCEPTOR_ENTER(ctx, strenvisx, dst, dlen, src, len, flag, cerr_ptr);
9036 if (src)
9037 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len);
9038 // FIXME: only need to be checked when "flag | VIS_NOLOCALE" doesn't hold
9039 // according to the implementation
9040 if (cerr_ptr)
9041 COMMON_INTERCEPTOR_READ_RANGE(ctx, cerr_ptr, sizeof(int));
9042 int ret = REAL(strenvisx)(dst, dlen, src, len, flag, cerr_ptr);
9043 if (dst && ret >= 0)
9044 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
9045 if (cerr_ptr)
9046 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cerr_ptr, sizeof(int));
9047 return ret;
9048}
9049INTERCEPTOR(char *, svis, char *dst, int c, int flag, int nextc,
9050 const char *extra) {
9051 void *ctx;
9052 COMMON_INTERCEPTOR_ENTER(ctx, svis, dst, c, flag, nextc, extra);
9053 if (extra)
9054 COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1);
9055 char *end = REAL(svis)(dst, c, flag, nextc, extra);
9056 if (dst && end)
9057 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, end - dst + 1);
9058 return end;
9059}
9060INTERCEPTOR(char *, snvis, char *dst, SIZE_T dlen, int c, int flag, int nextc,
9061 const char *extra) {
9062 void *ctx;
9063 COMMON_INTERCEPTOR_ENTER(ctx, snvis, dst, dlen, c, flag, nextc, extra);
9064 if (extra)
9065 COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1);
9066 char *end = REAL(snvis)(dst, dlen, c, flag, nextc, extra);
9067 if (dst && end)
9068 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst,
9069 Min((SIZE_T)(end - dst + 1), dlen));
9070 return end;
9071}
9072INTERCEPTOR(int, strsvis, char *dst, const char *src, int flag,
9073 const char *extra) {
9074 void *ctx;
9075 COMMON_INTERCEPTOR_ENTER(ctx, strsvis, dst, src, flag, extra);
9076 if (src)
9077 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
9078 if (extra)
9079 COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1);
9080 int len = REAL(strsvis)(dst, src, flag, extra);
9081 if (dst)
9082 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, len + 1);
9083 return len;
9084}
9085INTERCEPTOR(int, strsnvis, char *dst, SIZE_T dlen, const char *src, int flag,
9086 const char *extra) {
9087 void *ctx;
9088 COMMON_INTERCEPTOR_ENTER(ctx, strsnvis, dst, dlen, src, flag, extra);
9089 if (src)
9090 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
9091 if (extra)
9092 COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1);
9093 int len = REAL(strsnvis)(dst, dlen, src, flag, extra);
9094 // The interface will be valid even if there is no space for NULL char
9095 if (dst && len >= 0)
9096 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, len + 1);
9097 return len;
9098}
9099INTERCEPTOR(int, strsvisx, char *dst, const char *src, SIZE_T len, int flag,
9100 const char *extra) {
9101 void *ctx;
9102 COMMON_INTERCEPTOR_ENTER(ctx, strsvisx, dst, src, len, flag, extra);
9103 if (src)
9104 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len);
9105 if (extra)
9106 COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1);
9107 int ret = REAL(strsvisx)(dst, src, len, flag, extra);
9108 if (dst)
9109 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
9110 return ret;
9111}
9112INTERCEPTOR(int, strsnvisx, char *dst, SIZE_T dlen, const char *src, SIZE_T len,
9113 int flag, const char *extra) {
9114 void *ctx;
9115 COMMON_INTERCEPTOR_ENTER(ctx, strsnvisx, dst, dlen, src, len, flag, extra);
9116 if (src)
9117 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len);
9118 if (extra)
9119 COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1);
9120 int ret = REAL(strsnvisx)(dst, dlen, src, len, flag, extra);
9121 if (dst && ret >= 0)
9122 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
9123 return ret;
9124}
9125INTERCEPTOR(int, strsenvisx, char *dst, SIZE_T dlen, const char *src,
9126 SIZE_T len, int flag, const char *extra, int *cerr_ptr) {
9127 void *ctx;
9128 COMMON_INTERCEPTOR_ENTER(ctx, strsenvisx, dst, dlen, src, len, flag, extra,
9129 cerr_ptr);
9130 if (src)
9131 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len);
9132 if (extra)
9133 COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1);
9134 // FIXME: only need to be checked when "flag | VIS_NOLOCALE" doesn't hold
9135 // according to the implementation
9136 if (cerr_ptr)
9137 COMMON_INTERCEPTOR_READ_RANGE(ctx, cerr_ptr, sizeof(int));
9138 int ret = REAL(strsenvisx)(dst, dlen, src, len, flag, extra, cerr_ptr);
9139 if (dst && ret >= 0)
9140 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
9141 if (cerr_ptr)
9142 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cerr_ptr, sizeof(int));
9143 return ret;
9144}
9145INTERCEPTOR(int, unvis, char *cp, int c, int *astate, int flag) {
9146 void *ctx;
9147 COMMON_INTERCEPTOR_ENTER(ctx, unvis, cp, c, astate, flag);
9148 if (astate)
9149 COMMON_INTERCEPTOR_READ_RANGE(ctx, astate, sizeof(*astate));
9150 int ret = REAL(unvis)(cp, c, astate, flag);
9151 if (ret == unvis_valid || ret == unvis_validpush) {
9152 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cp, sizeof(*cp));
9153 }
9154 return ret;
9155}
9156INTERCEPTOR(int, strunvis, char *dst, const char *src) {
9157 void *ctx;
9158 COMMON_INTERCEPTOR_ENTER(ctx, strunvis, dst, src);
9159 if (src)
9160 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
9161 int ret = REAL(strunvis)(dst, src);
9162 if (ret != -1)
9163 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
9164 return ret;
9165}
9166INTERCEPTOR(int, strnunvis, char *dst, SIZE_T dlen, const char *src) {
9167 void *ctx;
9168 COMMON_INTERCEPTOR_ENTER(ctx, strnunvis, dst, dlen, src);
9169 if (src)
9170 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
9171 int ret = REAL(strnunvis)(dst, dlen, src);
9172 if (ret != -1)
9173 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
9174 return ret;
9175}
9176INTERCEPTOR(int, strunvisx, char *dst, const char *src, int flag) {
9177 void *ctx;
9178 COMMON_INTERCEPTOR_ENTER(ctx, strunvisx, dst, src, flag);
9179 if (src)
9180 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
9181 int ret = REAL(strunvisx)(dst, src, flag);
9182 if (ret != -1)
9183 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
9184 return ret;
9185}
9186INTERCEPTOR(int, strnunvisx, char *dst, SIZE_T dlen, const char *src,
9187 int flag) {
9188 void *ctx;
9189 COMMON_INTERCEPTOR_ENTER(ctx, strnunvisx, dst, dlen, src, flag);
9190 if (src)
9191 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
9192 int ret = REAL(strnunvisx)(dst, dlen, src, flag);
9193 if (ret != -1)
9194 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
9195 return ret;
9196}
9197#define INIT_VIS \
9198 COMMON_INTERCEPT_FUNCTION(vis); \
9199 COMMON_INTERCEPT_FUNCTION(nvis); \
9200 COMMON_INTERCEPT_FUNCTION(strvis); \
9201 COMMON_INTERCEPT_FUNCTION(stravis); \
9202 COMMON_INTERCEPT_FUNCTION(strnvis); \
9203 COMMON_INTERCEPT_FUNCTION(strvisx); \
9204 COMMON_INTERCEPT_FUNCTION(strnvisx); \
9205 COMMON_INTERCEPT_FUNCTION(strenvisx); \
9206 COMMON_INTERCEPT_FUNCTION(svis); \
9207 COMMON_INTERCEPT_FUNCTION(snvis); \
9208 COMMON_INTERCEPT_FUNCTION(strsvis); \
9209 COMMON_INTERCEPT_FUNCTION(strsnvis); \
9210 COMMON_INTERCEPT_FUNCTION(strsvisx); \
9211 COMMON_INTERCEPT_FUNCTION(strsnvisx); \
9212 COMMON_INTERCEPT_FUNCTION(strsenvisx); \
9213 COMMON_INTERCEPT_FUNCTION(unvis); \
9214 COMMON_INTERCEPT_FUNCTION(strunvis); \
9215 COMMON_INTERCEPT_FUNCTION(strnunvis); \
9216 COMMON_INTERCEPT_FUNCTION(strunvisx); \
9217 COMMON_INTERCEPT_FUNCTION(strnunvisx)
9218#else
9219#define INIT_VIS
9220#endif
9221
9222#if SANITIZER_INTERCEPT_CDB
9223INTERCEPTOR(struct __sanitizer_cdbr *, cdbr_open, const char *path, int flags) {
9224 void *ctx;
9225 COMMON_INTERCEPTOR_ENTER(ctx, cdbr_open, path, flags);
9226 if (path)
9227 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
9228 struct __sanitizer_cdbr *cdbr = REAL(cdbr_open)(path, flags);
9229 if (cdbr)
9230 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbr, sizeof(*cdbr));
9231 return cdbr;
9232}
9233
9234INTERCEPTOR(struct __sanitizer_cdbr *, cdbr_open_mem, void *base, SIZE_T size,
9235 int flags, void (*unmap)(void *, void *, SIZE_T), void *cookie) {
9236 void *ctx;
9237 COMMON_INTERCEPTOR_ENTER(ctx, cdbr_open_mem, base, size, flags, unmap,
9238 cookie);
9239 if (base && size)
9240 COMMON_INTERCEPTOR_READ_RANGE(ctx, base, size);
9241 struct __sanitizer_cdbr *cdbr =
9242 REAL(cdbr_open_mem)(base, size, flags, unmap, cookie);
9243 if (cdbr)
9244 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbr, sizeof(*cdbr));
9245 return cdbr;
9246}
9247
9248INTERCEPTOR(u32, cdbr_entries, struct __sanitizer_cdbr *cdbr) {
9249 void *ctx;
9250 COMMON_INTERCEPTOR_ENTER(ctx, cdbr_entries, cdbr);
9251 if (cdbr)
9252 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbr, sizeof(*cdbr));
9253 return REAL(cdbr_entries)(cdbr);
9254}
9255
9256INTERCEPTOR(int, cdbr_get, struct __sanitizer_cdbr *cdbr, u32 index,
9257 const void **data, SIZE_T *datalen) {
9258 void *ctx;
9259 COMMON_INTERCEPTOR_ENTER(ctx, cdbr_get, cdbr, index, data, datalen);
9260 if (cdbr)
9261 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbr, sizeof(*cdbr));
9262 int ret = REAL(cdbr_get)(cdbr, index, data, datalen);
9263 if (!ret) {
9264 if (data)
9265 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, sizeof(*data));
9266 if (datalen)
9267 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, datalen, sizeof(*datalen));
9268 if (data && datalen)
9269 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *data, *datalen);
9270 }
9271 return ret;
9272}
9273
9274INTERCEPTOR(int, cdbr_find, struct __sanitizer_cdbr *cdbr, const void *key,
9275 SIZE_T keylen, const void **data, SIZE_T *datalen) {
9276 void *ctx;
9277 COMMON_INTERCEPTOR_ENTER(ctx, cdbr_find, cdbr, key, keylen, data, datalen);
9278 if (cdbr)
9279 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbr, sizeof(*cdbr));
9280 if (key)
9281 COMMON_INTERCEPTOR_READ_RANGE(ctx, key, keylen);
9282 int ret = REAL(cdbr_find)(cdbr, key, keylen, data, datalen);
9283 if (!ret) {
9284 if (data)
9285 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, sizeof(*data));
9286 if (datalen)
9287 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, datalen, sizeof(*datalen));
9288 if (data && datalen)
9289 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *data, *datalen);
9290 }
9291 return ret;
9292}
9293
9294INTERCEPTOR(void, cdbr_close, struct __sanitizer_cdbr *cdbr) {
9295 void *ctx;
9296 COMMON_INTERCEPTOR_ENTER(ctx, cdbr_close, cdbr);
9297 if (cdbr)
9298 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbr, sizeof(*cdbr));
9299 REAL(cdbr_close)(cdbr);
9300}
9301
9302INTERCEPTOR(struct __sanitizer_cdbw *, cdbw_open) {
9303 void *ctx;
9304 COMMON_INTERCEPTOR_ENTER(ctx, cdbw_open);
9305 struct __sanitizer_cdbw *ret = REAL(cdbw_open)();
9306 if (ret)
9307 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, sizeof(*ret));
9308 return ret;
9309}
9310
9311INTERCEPTOR(int, cdbw_put, struct __sanitizer_cdbw *cdbw, const void *key,
9312 SIZE_T keylen, const void *data, SIZE_T datalen) {
9313 void *ctx;
9314 COMMON_INTERCEPTOR_ENTER(ctx, cdbw_put, cdbw, key, keylen, data, datalen);
9315 if (cdbw)
9316 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw));
9317 if (data && datalen)
9318 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, datalen);
9319 if (key && keylen)
9320 COMMON_INTERCEPTOR_READ_RANGE(ctx, key, keylen);
9321 int ret = REAL(cdbw_put)(cdbw, key, keylen, data, datalen);
9322 if (!ret && cdbw)
9323 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbw, sizeof(*cdbw));
9324 return ret;
9325}
9326
9327INTERCEPTOR(int, cdbw_put_data, struct __sanitizer_cdbw *cdbw, const void *data,
9328 SIZE_T datalen, u32 *index) {
9329 void *ctx;
9330 COMMON_INTERCEPTOR_ENTER(ctx, cdbw_put_data, cdbw, data, datalen, index);
9331 if (cdbw)
9332 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw));
9333 if (data && datalen)
9334 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, datalen);
9335 int ret = REAL(cdbw_put_data)(cdbw, data, datalen, index);
9336 if (!ret) {
9337 if (index)
9338 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, index, sizeof(*index));
9339 if (cdbw)
9340 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbw, sizeof(*cdbw));
9341 }
9342 return ret;
9343}
9344
9345INTERCEPTOR(int, cdbw_put_key, struct __sanitizer_cdbw *cdbw, const void *key,
9346 SIZE_T keylen, u32 index) {
9347 void *ctx;
9348 COMMON_INTERCEPTOR_ENTER(ctx, cdbw_put_key, cdbw, key, keylen, index);
9349 if (cdbw)
9350 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw));
9351 if (key && keylen)
9352 COMMON_INTERCEPTOR_READ_RANGE(ctx, key, keylen);
9353 int ret = REAL(cdbw_put_key)(cdbw, key, keylen, index);
9354 if (!ret && cdbw)
9355 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbw, sizeof(*cdbw));
9356 return ret;
9357}
9358
9359INTERCEPTOR(int, cdbw_output, struct __sanitizer_cdbw *cdbw, int output,
9360 const char descr[16], u32 (*seedgen)(void)) {
9361 void *ctx;
9362 COMMON_INTERCEPTOR_ENTER(ctx, cdbw_output, cdbw, output, descr, seedgen);
9363 COMMON_INTERCEPTOR_FD_ACCESS(ctx, output);
9364 if (cdbw)
9365 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw));
9366 if (descr)
9367 COMMON_INTERCEPTOR_READ_RANGE(ctx, descr, internal_strnlen(descr, 16));
9368 if (seedgen)
9369 COMMON_INTERCEPTOR_READ_RANGE(ctx, (void *)seedgen, sizeof(seedgen));
9370 int ret = REAL(cdbw_output)(cdbw, output, descr, seedgen);
9371 if (!ret) {
9372 if (cdbw)
9373 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbw, sizeof(*cdbw));
9374 if (output >= 0)
9375 COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, output);
9376 }
9377 return ret;
9378}
9379
9380INTERCEPTOR(void, cdbw_close, struct __sanitizer_cdbw *cdbw) {
9381 void *ctx;
9382 COMMON_INTERCEPTOR_ENTER(ctx, cdbw_close, cdbw);
9383 if (cdbw)
9384 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw));
9385 REAL(cdbw_close)(cdbw);
9386}
9387
9388#define INIT_CDB \
9389 COMMON_INTERCEPT_FUNCTION(cdbr_open); \
9390 COMMON_INTERCEPT_FUNCTION(cdbr_open_mem); \
9391 COMMON_INTERCEPT_FUNCTION(cdbr_entries); \
9392 COMMON_INTERCEPT_FUNCTION(cdbr_get); \
9393 COMMON_INTERCEPT_FUNCTION(cdbr_find); \
9394 COMMON_INTERCEPT_FUNCTION(cdbr_close); \
9395 COMMON_INTERCEPT_FUNCTION(cdbw_open); \
9396 COMMON_INTERCEPT_FUNCTION(cdbw_put); \
9397 COMMON_INTERCEPT_FUNCTION(cdbw_put_data); \
9398 COMMON_INTERCEPT_FUNCTION(cdbw_put_key); \
9399 COMMON_INTERCEPT_FUNCTION(cdbw_output); \
9400 COMMON_INTERCEPT_FUNCTION(cdbw_close)
9401#else
9402#define INIT_CDB
9403#endif
9404
9405#if SANITIZER_INTERCEPT_GETFSENT
9406INTERCEPTOR(void *, getfsent) {
9407 void *ctx;
9408 COMMON_INTERCEPTOR_ENTER(ctx, getfsent);
9409 void *ret = REAL(getfsent)();
9410 if (ret)
9411 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, struct_fstab_sz);
9412 return ret;
9413}
9414
9415INTERCEPTOR(void *, getfsspec, const char *spec) {
9416 void *ctx;
9417 COMMON_INTERCEPTOR_ENTER(ctx, getfsspec, spec);
9418 if (spec)
9419 COMMON_INTERCEPTOR_READ_RANGE(ctx, spec, REAL(strlen)(spec) + 1);
9420 void *ret = REAL(getfsspec)(spec);
9421 if (ret)
9422 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, struct_fstab_sz);
9423 return ret;
9424}
9425
9426INTERCEPTOR(void *, getfsfile, const char *file) {
9427 void *ctx;
9428 COMMON_INTERCEPTOR_ENTER(ctx, getfsfile, file);
9429 if (file)
9430 COMMON_INTERCEPTOR_READ_RANGE(ctx, file, REAL(strlen)(file) + 1);
9431 void *ret = REAL(getfsfile)(file);
9432 if (ret)
9433 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, struct_fstab_sz);
9434 return ret;
9435}
9436
9437#define INIT_GETFSENT \
9438 COMMON_INTERCEPT_FUNCTION(getfsent); \
9439 COMMON_INTERCEPT_FUNCTION(getfsspec); \
9440 COMMON_INTERCEPT_FUNCTION(getfsfile);
9441#else
9442#define INIT_GETFSENT
9443#endif
9444
9445#if SANITIZER_INTERCEPT_ARC4RANDOM
9446INTERCEPTOR(void, arc4random_buf, void *buf, SIZE_T len) {
9447 void *ctx;
9448 COMMON_INTERCEPTOR_ENTER(ctx, arc4random_buf, buf, len);
9449 REAL(arc4random_buf)(buf, len);
9450 if (buf && len)
9451 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, len);
9452}
9453
9454INTERCEPTOR(void, arc4random_addrandom, u8 *dat, int datlen) {
9455 void *ctx;
9456 COMMON_INTERCEPTOR_ENTER(ctx, arc4random_addrandom, dat, datlen);
9457 if (dat && datlen)
9458 COMMON_INTERCEPTOR_READ_RANGE(ctx, dat, datlen);
9459 REAL(arc4random_addrandom)(dat, datlen);
9460}
9461
9462#define INIT_ARC4RANDOM \
9463 COMMON_INTERCEPT_FUNCTION(arc4random_buf); \
9464 COMMON_INTERCEPT_FUNCTION(arc4random_addrandom);
9465#else
9466#define INIT_ARC4RANDOM
9467#endif
9468
9469#if SANITIZER_INTERCEPT_POPEN
9470INTERCEPTOR(__sanitizer_FILE *, popen, const char *command, const char *type) {
9471 void *ctx;
9472 COMMON_INTERCEPTOR_ENTER(ctx, popen, command, type);
9473 if (command)
9474 COMMON_INTERCEPTOR_READ_RANGE(ctx, command, REAL(strlen)(command) + 1);
9475 if (type)
9476 COMMON_INTERCEPTOR_READ_RANGE(ctx, type, REAL(strlen)(type) + 1);
9477 __sanitizer_FILE *res = REAL(popen)(command, type);
9478 COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, nullptr);
9479 if (res) unpoison_file(res);
9480 return res;
9481}
9482#define INIT_POPEN COMMON_INTERCEPT_FUNCTION(popen)
9483#else
9484#define INIT_POPEN
9485#endif
9486
9487#if SANITIZER_INTERCEPT_POPENVE
9488INTERCEPTOR(__sanitizer_FILE *, popenve, const char *path,
9489 char *const *argv, char *const *envp, const char *type) {
9490 void *ctx;
9491 COMMON_INTERCEPTOR_ENTER(ctx, popenve, path, argv, envp, type);
9492 if (path)
9493 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
9494 if (argv) {
9495 for (char *const *pa = argv; ; ++pa) {
9496 COMMON_INTERCEPTOR_READ_RANGE(ctx, pa, sizeof(char **));
9497 if (!*pa)
9498 break;
9499 COMMON_INTERCEPTOR_READ_RANGE(ctx, *pa, REAL(strlen)(*pa) + 1);
9500 }
9501 }
9502 if (envp) {
9503 for (char *const *pa = envp; ; ++pa) {
9504 COMMON_INTERCEPTOR_READ_RANGE(ctx, pa, sizeof(char **));
9505 if (!*pa)
9506 break;
9507 COMMON_INTERCEPTOR_READ_RANGE(ctx, *pa, REAL(strlen)(*pa) + 1);
9508 }
9509 }
9510 if (type)
9511 COMMON_INTERCEPTOR_READ_RANGE(ctx, type, REAL(strlen)(type) + 1);
9512 __sanitizer_FILE *res = REAL(popenve)(path, argv, envp, type);
9513 COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, nullptr);
9514 if (res) unpoison_file(res);
9515 return res;
9516}
9517#define INIT_POPENVE COMMON_INTERCEPT_FUNCTION(popenve)
9518#else
9519#define INIT_POPENVE
9520#endif
9521
9522#if SANITIZER_INTERCEPT_PCLOSE
9523INTERCEPTOR(int, pclose, __sanitizer_FILE *fp) {
9524 void *ctx;
9525 COMMON_INTERCEPTOR_ENTER(ctx, pclose, fp);
9526 COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp);
9527 const FileMetadata *m = GetInterceptorMetadata(fp);
9528 int res = REAL(pclose)(fp);
9529 if (m) {
9530 COMMON_INTERCEPTOR_INITIALIZE_RANGE(*m->addr, *m->size);
9531 DeleteInterceptorMetadata(fp);
9532 }
9533 return res;
9534}
9535#define INIT_PCLOSE COMMON_INTERCEPT_FUNCTION(pclose);
9536#else
9537#define INIT_PCLOSE
9538#endif
9539
9540#if SANITIZER_INTERCEPT_FUNOPEN
9541typedef int (*funopen_readfn)(void *cookie, char *buf, int len);
9542typedef int (*funopen_writefn)(void *cookie, const char *buf, int len);
9543typedef OFF_T (*funopen_seekfn)(void *cookie, OFF_T offset, int whence);
9544typedef int (*funopen_closefn)(void *cookie);
9545
9546struct WrappedFunopenCookie {
9547 void *real_cookie;
9548 funopen_readfn real_read;
9549 funopen_writefn real_write;
9550 funopen_seekfn real_seek;
9551 funopen_closefn real_close;
9552};
9553
9554static int wrapped_funopen_read(void *cookie, char *buf, int len) {
9555 COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
9556 WrappedFunopenCookie *wrapped_cookie = (WrappedFunopenCookie *)cookie;
9557 funopen_readfn real_read = wrapped_cookie->real_read;
9558 return real_read(wrapped_cookie->real_cookie, buf, len);
9559}
9560
9561static int wrapped_funopen_write(void *cookie, const char *buf, int len) {
9562 COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
9563 WrappedFunopenCookie *wrapped_cookie = (WrappedFunopenCookie *)cookie;
9564 funopen_writefn real_write = wrapped_cookie->real_write;
9565 return real_write(wrapped_cookie->real_cookie, buf, len);
9566}
9567
9568static OFF_T wrapped_funopen_seek(void *cookie, OFF_T offset, int whence) {
9569 COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
9570 WrappedFunopenCookie *wrapped_cookie = (WrappedFunopenCookie *)cookie;
9571 funopen_seekfn real_seek = wrapped_cookie->real_seek;
9572 return real_seek(wrapped_cookie->real_cookie, offset, whence);
9573}
9574
9575static int wrapped_funopen_close(void *cookie) {
9576 COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
9577 WrappedFunopenCookie *wrapped_cookie = (WrappedFunopenCookie *)cookie;
9578 funopen_closefn real_close = wrapped_cookie->real_close;
9579 int res = real_close(wrapped_cookie->real_cookie);
9580 InternalFree(wrapped_cookie);
9581 return res;
9582}
9583
9584INTERCEPTOR(__sanitizer_FILE *, funopen, void *cookie, funopen_readfn readfn,
9585 funopen_writefn writefn, funopen_seekfn seekfn,
9586 funopen_closefn closefn) {
9587 void *ctx;
9588 COMMON_INTERCEPTOR_ENTER(ctx, funopen, cookie, readfn, writefn, seekfn,
9589 closefn);
9590
9591 WrappedFunopenCookie *wrapped_cookie =
9592 (WrappedFunopenCookie *)InternalAlloc(sizeof(WrappedFunopenCookie));
9593 wrapped_cookie->real_cookie = cookie;
9594 wrapped_cookie->real_read = readfn;
9595 wrapped_cookie->real_write = writefn;
9596 wrapped_cookie->real_seek = seekfn;
9597 wrapped_cookie->real_close = closefn;
9598
9599 __sanitizer_FILE *res =
9600 REAL(funopen)(wrapped_cookie,
9601 readfn ? wrapped_funopen_read : nullptr,
9602 writefn ? wrapped_funopen_write : nullptr,
9603 seekfn ? wrapped_funopen_seek : nullptr,
9604 closefn ? wrapped_funopen_close : nullptr);
9605 if (res)
9606 unpoison_file(res);
9607 return res;
9608}
9609#define INIT_FUNOPEN COMMON_INTERCEPT_FUNCTION(funopen)
9610#else
9611#define INIT_FUNOPEN
9612#endif
9613
9614#if SANITIZER_INTERCEPT_FUNOPEN2
9615typedef SSIZE_T (*funopen2_readfn)(void *cookie, void *buf, SIZE_T len);
9616typedef SSIZE_T (*funopen2_writefn)(void *cookie, const void *buf, SIZE_T len);
9617typedef OFF_T (*funopen2_seekfn)(void *cookie, OFF_T offset, int whence);
9618typedef int (*funopen2_flushfn)(void *cookie);
9619typedef int (*funopen2_closefn)(void *cookie);
9620
9621struct WrappedFunopen2Cookie {
9622 void *real_cookie;
9623 funopen2_readfn real_read;
9624 funopen2_writefn real_write;
9625 funopen2_seekfn real_seek;
9626 funopen2_flushfn real_flush;
9627 funopen2_closefn real_close;
9628};
9629
9630static SSIZE_T wrapped_funopen2_read(void *cookie, void *buf, SIZE_T len) {
9631 COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
9632 WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie;
9633 funopen2_readfn real_read = wrapped_cookie->real_read;
9634 return real_read(wrapped_cookie->real_cookie, buf, len);
9635}
9636
9637static SSIZE_T wrapped_funopen2_write(void *cookie, const void *buf,
9638 SIZE_T len) {
9639 COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
9640 WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie;
9641 funopen2_writefn real_write = wrapped_cookie->real_write;
9642 return real_write(wrapped_cookie->real_cookie, buf, len);
9643}
9644
9645static OFF_T wrapped_funopen2_seek(void *cookie, OFF_T offset, int whence) {
9646 COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
9647 WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie;
9648 funopen2_seekfn real_seek = wrapped_cookie->real_seek;
9649 return real_seek(wrapped_cookie->real_cookie, offset, whence);
9650}
9651
9652static int wrapped_funopen2_flush(void *cookie) {
9653 COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
9654 WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie;
9655 funopen2_flushfn real_flush = wrapped_cookie->real_flush;
9656 return real_flush(wrapped_cookie->real_cookie);
9657}
9658
9659static int wrapped_funopen2_close(void *cookie) {
9660 COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
9661 WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie;
9662 funopen2_closefn real_close = wrapped_cookie->real_close;
9663 int res = real_close(wrapped_cookie->real_cookie);
9664 InternalFree(wrapped_cookie);
9665 return res;
9666}
9667
9668INTERCEPTOR(__sanitizer_FILE *, funopen2, void *cookie, funopen2_readfn readfn,
9669 funopen2_writefn writefn, funopen2_seekfn seekfn,
9670 funopen2_flushfn flushfn, funopen2_closefn closefn) {
9671 void *ctx;
9672 COMMON_INTERCEPTOR_ENTER(ctx, funopen2, cookie, readfn, writefn, seekfn,
9673 flushfn, closefn);
9674
9675 WrappedFunopen2Cookie *wrapped_cookie =
9676 (WrappedFunopen2Cookie *)InternalAlloc(sizeof(WrappedFunopen2Cookie));
9677 wrapped_cookie->real_cookie = cookie;
9678 wrapped_cookie->real_read = readfn;
9679 wrapped_cookie->real_write = writefn;
9680 wrapped_cookie->real_seek = seekfn;
9681 wrapped_cookie->real_flush = flushfn;
9682 wrapped_cookie->real_close = closefn;
9683
9684 __sanitizer_FILE *res =
9685 REAL(funopen2)(wrapped_cookie,
9686 readfn ? wrapped_funopen2_read : nullptr,
9687 writefn ? wrapped_funopen2_write : nullptr,
9688 seekfn ? wrapped_funopen2_seek : nullptr,
9689 flushfn ? wrapped_funopen2_flush : nullptr,
9690 closefn ? wrapped_funopen2_close : nullptr);
9691 if (res)
9692 unpoison_file(res);
9693 return res;
9694}
9695#define INIT_FUNOPEN2 COMMON_INTERCEPT_FUNCTION(funopen2)
9696#else
9697#define INIT_FUNOPEN2
9698#endif
9699
9700#if SANITIZER_INTERCEPT_FDEVNAME
9701INTERCEPTOR(char *, fdevname, int fd) {
9702 void *ctx;
9703 COMMON_INTERCEPTOR_ENTER(ctx, fdevname, fd);
9704 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
9705 char *name = REAL(fdevname)(fd);
9706 if (name) {
9707 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, REAL(strlen)(name) + 1);
9708 if (fd > 0)
9709 COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
9710 }
9711 return name;
9712}
9713
9714INTERCEPTOR(char *, fdevname_r, int fd, char *buf, SIZE_T len) {
9715 void *ctx;
9716 COMMON_INTERCEPTOR_ENTER(ctx, fdevname_r, fd, buf, len);
9717 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
9718 char *name = REAL(fdevname_r)(fd, buf, len);
9719 if (name && buf && len > 0) {
9720 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, REAL(strlen)(buf) + 1);
9721 if (fd > 0)
9722 COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
9723 }
9724 return name;
9725}
9726
9727#define INIT_FDEVNAME \
9728 COMMON_INTERCEPT_FUNCTION(fdevname); \
9729 COMMON_INTERCEPT_FUNCTION(fdevname_r);
9730#else
9731#define INIT_FDEVNAME
9732#endif
9733
9734#if SANITIZER_INTERCEPT_GETUSERSHELL
9735INTERCEPTOR(char *, getusershell) {
9736 void *ctx;
9737 COMMON_INTERCEPTOR_ENTER(ctx, getusershell);
9738 char *res = REAL(getusershell)();
9739 if (res)
9740 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
9741 return res;
9742}
9743
9744#define INIT_GETUSERSHELL COMMON_INTERCEPT_FUNCTION(getusershell);
9745#else
9746#define INIT_GETUSERSHELL
9747#endif
9748
9749#if SANITIZER_INTERCEPT_SL_INIT
9750INTERCEPTOR(void *, sl_init) {
9751 void *ctx;
9752 COMMON_INTERCEPTOR_ENTER(ctx, sl_init);
9753 void *res = REAL(sl_init)();
9754 if (res)
9755 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, __sanitizer::struct_StringList_sz);
9756 return res;
9757}
9758
9759INTERCEPTOR(int, sl_add, void *sl, char *item) {
9760 void *ctx;
9761 COMMON_INTERCEPTOR_ENTER(ctx, sl_add, sl, item);
9762 if (sl)
9763 COMMON_INTERCEPTOR_READ_RANGE(ctx, sl, __sanitizer::struct_StringList_sz);
9764 if (item)
9765 COMMON_INTERCEPTOR_READ_RANGE(ctx, item, REAL(strlen)(item) + 1);
9766 int res = REAL(sl_add)(sl, item);
9767 if (!res)
9768 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sl, __sanitizer::struct_StringList_sz);
9769 return res;
9770}
9771
9772INTERCEPTOR(char *, sl_find, void *sl, const char *item) {
9773 void *ctx;
9774 COMMON_INTERCEPTOR_ENTER(ctx, sl_find, sl, item);
9775 if (sl)
9776 COMMON_INTERCEPTOR_READ_RANGE(ctx, sl, __sanitizer::struct_StringList_sz);
9777 if (item)
9778 COMMON_INTERCEPTOR_READ_RANGE(ctx, item, REAL(strlen)(item) + 1);
9779 char *res = REAL(sl_find)(sl, item);
9780 if (res)
9781 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
9782 return res;
9783}
9784
9785INTERCEPTOR(void, sl_free, void *sl, int freeall) {
9786 void *ctx;
9787 COMMON_INTERCEPTOR_ENTER(ctx, sl_free, sl, freeall);
9788 if (sl)
9789 COMMON_INTERCEPTOR_READ_RANGE(ctx, sl, __sanitizer::struct_StringList_sz);
9790 REAL(sl_free)(sl, freeall);
9791}
9792
9793#define INIT_SL_INIT \
9794 COMMON_INTERCEPT_FUNCTION(sl_init); \
9795 COMMON_INTERCEPT_FUNCTION(sl_add); \
9796 COMMON_INTERCEPT_FUNCTION(sl_find); \
9797 COMMON_INTERCEPT_FUNCTION(sl_free);
9798#else
9799#define INIT_SL_INIT
9800#endif
9801
9802#if SANITIZER_INTERCEPT_GETRANDOM
9803INTERCEPTOR(SSIZE_T, getrandom, void *buf, SIZE_T buflen, unsigned int flags) {
9804 void *ctx;
9805 COMMON_INTERCEPTOR_ENTER(ctx, getrandom, buf, buflen, flags);
9806 SSIZE_T n = REAL(getrandom)(buf, buflen, flags);
9807 if (n > 0) {
9808 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, n);
9809 }
9810 return n;
9811}
9812#define INIT_GETRANDOM COMMON_INTERCEPT_FUNCTION(getrandom)
9813#else
9814#define INIT_GETRANDOM
9815#endif
9816
9817#if SANITIZER_INTERCEPT_CRYPT
9818INTERCEPTOR(char *, crypt, char *key, char *salt) {
9819 void *ctx;
9820 COMMON_INTERCEPTOR_ENTER(ctx, crypt, key, salt);
9821 COMMON_INTERCEPTOR_READ_RANGE(ctx, key, internal_strlen(key) + 1);
9822 COMMON_INTERCEPTOR_READ_RANGE(ctx, salt, internal_strlen(salt) + 1);
9823 char *res = REAL(crypt)(key, salt);
9824 if (res != nullptr)
9825 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, internal_strlen(res) + 1);
9826 return res;
9827}
9828#define INIT_CRYPT COMMON_INTERCEPT_FUNCTION(crypt);
9829#else
9830#define INIT_CRYPT
9831#endif
9832
9833#if SANITIZER_INTERCEPT_CRYPT_R
9834INTERCEPTOR(char *, crypt_r, char *key, char *salt, void *data) {
9835 void *ctx;
9836 COMMON_INTERCEPTOR_ENTER(ctx, crypt_r, key, salt, data);
9837 COMMON_INTERCEPTOR_READ_RANGE(ctx, key, internal_strlen(key) + 1);
9838 COMMON_INTERCEPTOR_READ_RANGE(ctx, salt, internal_strlen(salt) + 1);
9839 char *res = REAL(crypt_r)(key, salt, data);
9840 if (res != nullptr) {
9841 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data,
9842 __sanitizer::struct_crypt_data_sz);
9843 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, internal_strlen(res) + 1);
9844 }
9845 return res;
9846}
9847#define INIT_CRYPT_R COMMON_INTERCEPT_FUNCTION(crypt_r);
9848#else
9849#define INIT_CRYPT_R
9850#endif
9851
9852#if SANITIZER_INTERCEPT_GETENTROPY
9853INTERCEPTOR(int, getentropy, void *buf, SIZE_T buflen) {
9854 void *ctx;
9855 COMMON_INTERCEPTOR_ENTER(ctx, getentropy, buf, buflen);
9856 int r = REAL(getentropy)(buf, buflen);
9857 if (r == 0) {
9858 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen);
9859 }
9860 return r;
9861}
9862#define INIT_GETENTROPY COMMON_INTERCEPT_FUNCTION(getentropy)
9863#else
9864#define INIT_GETENTROPY
9865#endif
9866
9867#if SANITIZER_INTERCEPT_QSORT
9868// Glibc qsort uses a temporary buffer allocated either on stack or on heap.
9869// Poisoned memory from there may get copied into the comparator arguments,
9870// where it needs to be dealt with. But even that is not enough - the results of
9871// the sort may be copied into the input/output array based on the results of
9872// the comparator calls, but directly from the temp memory, bypassing the
9873// unpoisoning done in wrapped_qsort_compar. We deal with this by, again,
9874// unpoisoning the entire array after the sort is done.
9875//
9876// We can not check that the entire array is initialized at the beginning. IMHO,
9877// it's fine for parts of the sorted objects to contain uninitialized memory,
9878// ex. as padding in structs.
9879typedef int (*qsort_compar_f)(const void *, const void *);
9880static THREADLOCAL qsort_compar_f qsort_compar;
9881static THREADLOCAL SIZE_T qsort_size;
9882int wrapped_qsort_compar(const void *a, const void *b) {
9883 COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
9884 COMMON_INTERCEPTOR_INITIALIZE_RANGE(a, qsort_size);
9885 COMMON_INTERCEPTOR_INITIALIZE_RANGE(b, qsort_size);
9886 return qsort_compar(a, b);
9887}
9888
9889INTERCEPTOR(void, qsort, void *base, SIZE_T nmemb, SIZE_T size,
9890 qsort_compar_f compar) {
9891 void *ctx;
9892 COMMON_INTERCEPTOR_ENTER(ctx, qsort, base, nmemb, size, compar);
9893 // Run the comparator over all array elements to detect any memory issues.
9894 if (nmemb > 1) {
9895 for (SIZE_T i = 0; i < nmemb - 1; ++i) {
9896 void *p = (void *)((char *)base + i * size);
9897 void *q = (void *)((char *)base + (i + 1) * size);
9898 COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
9899 compar(p, q);
9900 }
9901 }
9902 qsort_compar_f old_compar = qsort_compar;
9903 SIZE_T old_size = qsort_size;
9904 // Handle qsort() implementations that recurse using an
9905 // interposable function call:
9906 bool already_wrapped = compar == wrapped_qsort_compar;
9907 if (already_wrapped) {
9908 // This case should only happen if the qsort() implementation calls itself
9909 // using a preemptible function call (e.g. the FreeBSD libc version).
9910 // Check that the size and comparator arguments are as expected.
9911 CHECK_NE(compar, qsort_compar);
9912 CHECK_EQ(qsort_size, size);
9913 } else {
9914 qsort_compar = compar;
9915 qsort_size = size;
9916 }
9917 REAL(qsort)(base, nmemb, size, wrapped_qsort_compar);
9918 if (!already_wrapped) {
9919 qsort_compar = old_compar;
9920 qsort_size = old_size;
9921 }
9922 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, base, nmemb * size);
9923}
9924#define INIT_QSORT COMMON_INTERCEPT_FUNCTION(qsort)
9925#else
9926#define INIT_QSORT
9927#endif
9928
9929#if SANITIZER_INTERCEPT_QSORT_R
9930typedef int (*qsort_r_compar_f)(const void *, const void *, void *);
9931static THREADLOCAL qsort_r_compar_f qsort_r_compar;
9932static THREADLOCAL SIZE_T qsort_r_size;
9933int wrapped_qsort_r_compar(const void *a, const void *b, void *arg) {
9934 COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
9935 COMMON_INTERCEPTOR_INITIALIZE_RANGE(a, qsort_r_size);
9936 COMMON_INTERCEPTOR_INITIALIZE_RANGE(b, qsort_r_size);
9937 return qsort_r_compar(a, b, arg);
9938}
9939
9940INTERCEPTOR(void, qsort_r, void *base, SIZE_T nmemb, SIZE_T size,
9941 qsort_r_compar_f compar, void *arg) {
9942 void *ctx;
9943 COMMON_INTERCEPTOR_ENTER(ctx, qsort_r, base, nmemb, size, compar, arg);
9944 // Run the comparator over all array elements to detect any memory issues.
9945 if (nmemb > 1) {
9946 for (SIZE_T i = 0; i < nmemb - 1; ++i) {
9947 void *p = (void *)((char *)base + i * size);
9948 void *q = (void *)((char *)base + (i + 1) * size);
9949 COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
9950 compar(p, q, arg);
9951 }
9952 }
9953 qsort_r_compar_f old_compar = qsort_r_compar;
9954 SIZE_T old_size = qsort_r_size;
9955 // Handle qsort_r() implementations that recurse using an
9956 // interposable function call:
9957 bool already_wrapped = compar == wrapped_qsort_r_compar;
9958 if (already_wrapped) {
9959 // This case should only happen if the qsort() implementation calls itself
9960 // using a preemptible function call (e.g. the FreeBSD libc version).
9961 // Check that the size and comparator arguments are as expected.
9962 CHECK_NE(compar, qsort_r_compar);
9963 CHECK_EQ(qsort_r_size, size);
9964 } else {
9965 qsort_r_compar = compar;
9966 qsort_r_size = size;
9967 }
9968 REAL(qsort_r)(base, nmemb, size, wrapped_qsort_r_compar, arg);
9969 if (!already_wrapped) {
9970 qsort_r_compar = old_compar;
9971 qsort_r_size = old_size;
9972 }
9973 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, base, nmemb * size);
9974}
9975#define INIT_QSORT_R COMMON_INTERCEPT_FUNCTION(qsort_r)
9976#else
9977#define INIT_QSORT_R
9978#endif
9979
9980#if SANITIZER_INTERCEPT_SIGALTSTACK
9981INTERCEPTOR(int, sigaltstack, void *ss, void *oss) {
9982 void *ctx;
9983 COMMON_INTERCEPTOR_ENTER(ctx, sigaltstack, ss, oss);
9984 int r = REAL(sigaltstack)(ss, oss);
9985 if (r == 0 && oss != nullptr) {
9986 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oss, struct_stack_t_sz);
9987 }
9988 return r;
9989}
9990#define INIT_SIGALTSTACK COMMON_INTERCEPT_FUNCTION(sigaltstack)
9991#else
9992#define INIT_SIGALTSTACK
9993#endif
9994
9995#if SANITIZER_INTERCEPT_UNAME
9996INTERCEPTOR(int, uname, struct utsname *utsname) {
9997#if SANITIZER_LINUX
9998 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
9999 return internal_uname(utsname);
10000#endif
10001 void *ctx;
10002 COMMON_INTERCEPTOR_ENTER(ctx, uname, utsname);
10003 int res = REAL(uname)(utsname);
10004 if (!res)
10005 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, utsname,
10006 __sanitizer::struct_utsname_sz);
10007 return res;
10008}
10009#define INIT_UNAME COMMON_INTERCEPT_FUNCTION(uname)
10010#else
10011#define INIT_UNAME
10012#endif
10013
10014#if SANITIZER_INTERCEPT___XUNAME
10015// FreeBSD's <sys/utsname.h> define uname() as
10016// static __inline int uname(struct utsname *name) {
10017// return __xuname(SYS_NMLN, (void*)name);
10018// }
10019INTERCEPTOR(int, __xuname, int size, void *utsname) {
10020 void *ctx;
10021 COMMON_INTERCEPTOR_ENTER(ctx, __xuname, size, utsname);
10022 int res = REAL(__xuname)(size, utsname);
10023 if (!res)
10024 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, utsname,
10025 __sanitizer::struct_utsname_sz);
10026 return res;
10027}
10028#define INIT___XUNAME COMMON_INTERCEPT_FUNCTION(__xuname)
10029#else
10030#define INIT___XUNAME
10031#endif
10032
10033#include "sanitizer_common_interceptors_netbsd_compat.inc"
10034
10035static void InitializeCommonInterceptors() {
10036#if SI_POSIX
10037 static u64 metadata_mem[sizeof(MetadataHashMap) / sizeof(u64) + 1];
10038 interceptor_metadata_map = new ((void *)&metadata_mem) MetadataHashMap();
10039#endif
10040
10041 INIT_MMAP;
10042 INIT_MMAP64;
10043 INIT_TEXTDOMAIN;
10044 INIT_STRLEN;
10045 INIT_STRNLEN;
10046 INIT_STRNDUP;
10047 INIT___STRNDUP;
10048 INIT_STRCMP;
10049 INIT_STRNCMP;
10050 INIT_STRCASECMP;
10051 INIT_STRNCASECMP;
10052 INIT_STRSTR;
10053 INIT_STRCASESTR;
10054 INIT_STRCHR;
10055 INIT_STRCHRNUL;
10056 INIT_STRRCHR;
10057 INIT_STRSPN;
10058 INIT_STRTOK;
10059 INIT_STRPBRK;
10060 INIT_STRXFRM;
10061 INIT___STRXFRM_L;
10062 INIT_MEMSET;
10063 INIT_MEMMOVE;
10064 INIT_MEMCPY;
10065 INIT_MEMCHR;
10066 INIT_MEMCMP;
10067 INIT_BCMP;
10068 INIT_MEMRCHR;
10069 INIT_MEMMEM;
10070 INIT_READ;
10071 INIT_FREAD;
10072 INIT_PREAD;
10073 INIT_PREAD64;
10074 INIT_READV;
10075 INIT_PREADV;
10076 INIT_PREADV64;
10077 INIT_WRITE;
10078 INIT_FWRITE;
10079 INIT_PWRITE;
10080 INIT_PWRITE64;
10081 INIT_WRITEV;
10082 INIT_PWRITEV;
10083 INIT_PWRITEV64;
10084 INIT_FGETS;
10085 INIT_FPUTS;
10086 INIT_PUTS;
10087 INIT_PRCTL;
10088 INIT_LOCALTIME_AND_FRIENDS;
10089 INIT_STRPTIME;
10090 INIT_SCANF;
10091 INIT_ISOC99_SCANF;
10092 INIT_PRINTF;
10093 INIT_PRINTF_L;
10094 INIT_ISOC99_PRINTF;
10095 INIT_FREXP;
10096 INIT_FREXPF_FREXPL;
10097 INIT_GETPWNAM_AND_FRIENDS;
10098 INIT_GETPWNAM_R_AND_FRIENDS;
10099 INIT_GETPWENT;
10100 INIT_FGETPWENT;
10101 INIT_GETPWENT_R;
10102 INIT_FGETPWENT_R;
10103 INIT_FGETGRENT_R;
10104 INIT_SETPWENT;
10105 INIT_CLOCK_GETTIME;
10106 INIT_CLOCK_GETCPUCLOCKID;
10107 INIT_GETITIMER;
10108 INIT_TIME;
10109 INIT_GLOB;
10110 INIT_GLOB64;
10111 INIT_WAIT;
10112 INIT_WAIT4;
10113 INIT_INET;
10114 INIT_PTHREAD_GETSCHEDPARAM;
10115 INIT_GETADDRINFO;
10116 INIT_GETNAMEINFO;
10117 INIT_GETSOCKNAME;
10118 INIT_GETHOSTBYNAME;
10119 INIT_GETHOSTBYNAME2;
10120 INIT_GETHOSTBYNAME_R;
10121 INIT_GETHOSTBYNAME2_R;
10122 INIT_GETHOSTBYADDR_R;
10123 INIT_GETHOSTENT_R;
10124 INIT_GETSOCKOPT;
10125 INIT_ACCEPT;
10126 INIT_ACCEPT4;
10127 INIT_PACCEPT;
10128 INIT_MODF;
10129 INIT_RECVMSG;
10130 INIT_SENDMSG;
10131 INIT_RECVMMSG;
10132 INIT_SENDMMSG;
10133 INIT_SYSMSG;
10134 INIT_GETPEERNAME;
10135 INIT_IOCTL;
10136 INIT_INET_ATON;
10137 INIT_SYSINFO;
10138 INIT_READDIR;
10139 INIT_READDIR64;
10140 INIT_PTRACE;
10141 INIT_SETLOCALE;
10142 INIT_GETCWD;
10143 INIT_GET_CURRENT_DIR_NAME;
10144 INIT_STRTOIMAX;
10145 INIT_MBSTOWCS;
10146 INIT_MBSNRTOWCS;
10147 INIT_WCSTOMBS;
10148 INIT_WCSNRTOMBS;
10149 INIT_WCRTOMB;
10150 INIT_WCTOMB;
10151 INIT_TCGETATTR;
10152 INIT_REALPATH;
10153 INIT_CANONICALIZE_FILE_NAME;
10154 INIT_CONFSTR;
10155 INIT_SCHED_GETAFFINITY;
10156 INIT_SCHED_GETPARAM;
10157 INIT_STRERROR;
10158 INIT_STRERROR_R;
10159 INIT_XPG_STRERROR_R;
10160 INIT_SCANDIR;
10161 INIT_SCANDIR64;
10162 INIT_GETGROUPS;
10163 INIT_POLL;
10164 INIT_PPOLL;
10165 INIT_WORDEXP;
10166 INIT_SIGWAIT;
10167 INIT_SIGWAITINFO;
10168 INIT_SIGTIMEDWAIT;
10169 INIT_SIGSETOPS;
10170 INIT_SIGSET_LOGICOPS;
10171 INIT_SIGPENDING;
10172 INIT_SIGPROCMASK;
10173 INIT_PTHREAD_SIGMASK;
10174 INIT_BACKTRACE;
10175 INIT__EXIT;
10176 INIT_PTHREAD_MUTEX_LOCK;
10177 INIT_PTHREAD_MUTEX_UNLOCK;
10178 INIT___PTHREAD_MUTEX_LOCK;
10179 INIT___PTHREAD_MUTEX_UNLOCK;
10180 INIT___LIBC_MUTEX_LOCK;
10181 INIT___LIBC_MUTEX_UNLOCK;
10182 INIT___LIBC_THR_SETCANCELSTATE;
10183 INIT_GETMNTENT;
10184 INIT_GETMNTENT_R;
10185 INIT_STATFS;
10186 INIT_STATFS64;
10187 INIT_STATVFS;
10188 INIT_STATVFS64;
10189 INIT_INITGROUPS;
10190 INIT_ETHER_NTOA_ATON;
10191 INIT_ETHER_HOST;
10192 INIT_ETHER_R;
10193 INIT_SHMCTL;
10194 INIT_RANDOM_R;
10195 INIT_PTHREAD_ATTR_GET;
10196 INIT_PTHREAD_ATTR_GET_SCHED;
10197 INIT_PTHREAD_ATTR_GETINHERITSCHED;
10198 INIT_PTHREAD_ATTR_GETAFFINITY_NP;
10199 INIT_PTHREAD_MUTEXATTR_GETPSHARED;
10200 INIT_PTHREAD_MUTEXATTR_GETTYPE;
10201 INIT_PTHREAD_MUTEXATTR_GETPROTOCOL;
10202 INIT_PTHREAD_MUTEXATTR_GETPRIOCEILING;
10203 INIT_PTHREAD_MUTEXATTR_GETROBUST;
10204 INIT_PTHREAD_MUTEXATTR_GETROBUST_NP;
10205 INIT_PTHREAD_RWLOCKATTR_GETPSHARED;
10206 INIT_PTHREAD_RWLOCKATTR_GETKIND_NP;
10207 INIT_PTHREAD_CONDATTR_GETPSHARED;
10208 INIT_PTHREAD_CONDATTR_GETCLOCK;
10209 INIT_PTHREAD_BARRIERATTR_GETPSHARED;
10210 INIT_TMPNAM;
10211 INIT_TMPNAM_R;
10212 INIT_PTSNAME;
10213 INIT_PTSNAME_R;
10214 INIT_TTYNAME;
10215 INIT_TTYNAME_R;
10216 INIT_TEMPNAM;
10217 INIT_PTHREAD_SETNAME_NP;
10218 INIT_PTHREAD_GETNAME_NP;
10219 INIT_SINCOS;
10220 INIT_REMQUO;
10221 INIT_REMQUOL;
10222 INIT_LGAMMA;
10223 INIT_LGAMMAL;
10224 INIT_LGAMMA_R;
10225 INIT_LGAMMAL_R;
10226 INIT_DRAND48_R;
10227 INIT_RAND_R;
10228 INIT_GETLINE;
10229 INIT_ICONV;
10230 INIT_TIMES;
10231 INIT_TLS_GET_ADDR;
10232 INIT_LISTXATTR;
10233 INIT_GETXATTR;
10234 INIT_GETRESID;
10235 INIT_GETIFADDRS;
10236 INIT_IF_INDEXTONAME;
10237 INIT_CAPGET;
10238 INIT_AEABI_MEM;
10239 INIT___BZERO;
10240 INIT_BZERO;
10241 INIT_FTIME;
10242 INIT_XDR;
10243 INIT_XDRREC_LINUX;
10244 INIT_TSEARCH;
10245 INIT_LIBIO_INTERNALS;
10246 INIT_FOPEN;
10247 INIT_FOPEN64;
10248 INIT_OPEN_MEMSTREAM;
10249 INIT_OBSTACK;
10250 INIT_FFLUSH;
10251 INIT_FCLOSE;
10252 INIT_DLOPEN_DLCLOSE;
10253 INIT_GETPASS;
10254 INIT_TIMERFD;
10255 INIT_MLOCKX;
10256 INIT_FOPENCOOKIE;
10257 INIT_SEM;
10258 INIT_PTHREAD_SETCANCEL;
10259 INIT_MINCORE;
10260 INIT_PROCESS_VM_READV;
10261 INIT_CTERMID;
10262 INIT_CTERMID_R;
10263 INIT_RECV_RECVFROM;
10264 INIT_SEND_SENDTO;
10265 INIT_STAT;
10266 INIT_EVENTFD_READ_WRITE;
10267 INIT_LSTAT;
10268 INIT___XSTAT;
10269 INIT___XSTAT64;
10270 INIT___LXSTAT;
10271 INIT___LXSTAT64;
10272 // FIXME: add other *stat interceptors.
10273 INIT_UTMP;
10274 INIT_UTMPX;
10275 INIT_GETLOADAVG;
10276 INIT_WCSLEN;
10277 INIT_WCSCAT;
10278 INIT_WCSDUP;
10279 INIT_WCSXFRM;
10280 INIT___WCSXFRM_L;
10281 INIT_ACCT;
10282 INIT_USER_FROM_UID;
10283 INIT_UID_FROM_USER;
10284 INIT_GROUP_FROM_GID;
10285 INIT_GID_FROM_GROUP;
10286 INIT_ACCESS;
10287 INIT_FACCESSAT;
10288 INIT_GETGROUPLIST;
10289 INIT_GETGROUPMEMBERSHIP;
10290 INIT_READLINK;
10291 INIT_READLINKAT;
10292 INIT_NAME_TO_HANDLE_AT;
10293 INIT_OPEN_BY_HANDLE_AT;
10294 INIT_STRLCPY;
10295 INIT_DEVNAME;
10296 INIT_DEVNAME_R;
10297 INIT_FGETLN;
10298 INIT_STRMODE;
10299 INIT_TTYENT;
10300 INIT_PROTOENT;
10301 INIT_PROTOENT_R;
10302 INIT_NETENT;
10303 INIT_GETMNTINFO;
10304 INIT_MI_VECTOR_HASH;
10305 INIT_SETVBUF;
10306 INIT_GETVFSSTAT;
10307 INIT_REGEX;
10308 INIT_REGEXSUB;
10309 INIT_FTS;
10310 INIT_SYSCTL;
10311 INIT_ASYSCTL;
10312 INIT_SYSCTLGETMIBINFO;
10313 INIT_NL_LANGINFO;
10314 INIT_MODCTL;
10315 INIT_STRTONUM;
10316 INIT_FPARSELN;
10317 INIT_STATVFS1;
10318 INIT_STRTOI;
10319 INIT_CAPSICUM;
10320 INIT_SHA1;
10321 INIT_MD4;
10322 INIT_RMD160;
10323 INIT_MD5;
10324 INIT_FSEEK;
10325 INIT_MD2;
10326 INIT_SHA2;
10327 INIT_VIS;
10328 INIT_CDB;
10329 INIT_GETFSENT;
10330 INIT_ARC4RANDOM;
10331 INIT_POPEN;
10332 INIT_POPENVE;
10333 INIT_PCLOSE;
10334 INIT_FUNOPEN;
10335 INIT_FUNOPEN2;
10336 INIT_FDEVNAME;
10337 INIT_GETUSERSHELL;
10338 INIT_SL_INIT;
10339 INIT_GETRANDOM;
10340 INIT_CRYPT;
10341 INIT_CRYPT_R;
10342 INIT_GETENTROPY;
10343 INIT_QSORT;
10344 INIT_QSORT_R;
10345 INIT_SIGALTSTACK;
10346 INIT_UNAME;
10347 INIT___XUNAME;
10348
10349 INIT___PRINTF_CHK;
10350}
10351